J.K.M.(?). 1 portrait.
P.M.. 2 portraits.
S.E.M. (floruit mid 19th century). 5 portraits.
'VM' (floruit 1634-1637). 1 portrait.
'W.M.' (floruit circa 1810). 1 portrait.
Charles H. Mabey (floruit 1863-1897). 1 portrait.
James Macardell (1727 or 1728-1765). 223 portraits.
L. Macartan. 1 portrait.
Paula A. MacArthur (1967-). 1 portrait.
Angus McBean (1904-1990). 159 portraits.
Norman McBeath (1952-). 42 portraits.
Norman Macbeth (1821-1888). 1 portrait.
Robert Walker Macbeth (1848-1910). 1 portrait.
James McBey (1883-1959). 1 portrait.
Eamonn McCabe (1948-). 25 portraits.
William McCall (1812-1888). 1 portrait.
W. McCall (born circa 1786). 3 portraits.
Linda McCartney (1941-1998). 13 portraits.
Mary McCartney (1969-). 4 portraits.
(Peter) Michael ('Mike') McCartney (McGear) (1944-). 11 portraits.
Samuel Barton McClellan. 1 portrait.
Leonard William McComb (1930-). 3 portraits.
Leonard McCombe (1923-). 1 portrait.
Niall McDiarmid (1967-). 3 portraits.
Godfrey MacDomnic (1930-). 8 portraits.
Daniel Macdonald (1821-1853). 1 portrait.
Lawrence Macdonald (1799-1878). 2 portraits.
Nesta MacDonald. 2 portraits.
Pirie MacDonald (1867-1942). 2 portraits.
Somerled Macdonald (1869-1948). 1 portrait.
George D. MacDougald (floruit 1910). 1 portrait.
J.A. Macdougall. 1 portrait.
Patrick MacDowell (1799-1870). 1 portrait.
John McElheran (floruit 1850s). 1 portrait.
Ambrose McEvoy (1878-1927). 4 portraits.
Brian McEvoy. 1 portrait.
David McFall (1919-1988). 2 portraits.
Fi McGhee (1963-). 2 portraits.
W. McGill. 1 portrait.
Alexander McGlashon (McGlashan) (1815-1877). 2 portraits.
McGlashon & Walker (floruit 1863-1865). 2 portraits.
Joe McGorty. 2 portraits.
Ann McGuinness. 6 portraits.
David Stefan Mach (1956-). 1 portrait.
Jim McHugh. 1 portrait.
Niall McInerney (1941-). 2 portraits.
Edward McInnes (1812-1859). 13 portraits.
Robert MacInnes. 1 portrait.
Andrew Finlay Mackenzie (1846-1940). 2 portraits.
K. Mackenzie (floruit 1799-1810). 6 portraits.
Samuel MacKenzie (1785-1847). 2 portraits.
William Mackenzie. 1 portrait.
Mackenzie. 39 portraits.
Michael McKeown (1930-1999). 1 portrait.
Joss McKinley (1981-). 2 portraits.
Esther Blaikie Mackinnon (1885-1935). 2 portraits.
Kevin Mackintosh (1962-). 2 portraits.
A. Macklin. 1 portrait.
Thomas Macklin (1760-1800). 3 portraits.
James R. Mackrell (floruit 1838-1846). 1 portrait.
Andrew MacLaren (1883-1975). 1 portrait.
Donald Graeme MacLaren (1886-1917). 1 portrait.
Sam MacLaren (1976-). 2 portraits.
Frances McLaughlin-Gill (1919-). 3 portraits.
Thomas McLean (floruit 1816-1832). 149 portraits.
Thomas McLean & Co. (floruit 1867-1869). 6 portraits.
McLean & Haes (floruit 1863-1866). 17 portraits.
McLean, Melhuish, Napper & Co. (floruit 1861). 1 portrait.
Kenneth Macleay (1802-1878). 3 portraits.
Donald MacLellan (1967-). 46 portraits.
Archibald McLeod. 1 portrait.
Murdo MacLeod (1963-). 1 portrait.
Daniel Maclise (1806-1870). 61 portraits.
Andrew Maclure (floruit 1857-1881). 5 portraits.
Maclure, Macdonald and Macgregor. 1 portrait.
Maclure and Macdonald. 16 portraits.
Maclure, Macdonald & Co.. 4 portraits.
Henry MacManus (circa 1810-1878). 1 portrait.
Sean McMenomy. 1 portrait.
Keith McMillan. 2 portraits.
P. McMorland. 2 portraits.
Alexander McNab (floruit 1855-1922). 2 portraits.
F.A. MacNamara (floruit 1838). 1 portrait.
Sir Daniel Macnee (1806-1882). 5 portraits.
Janet Macoska. 1 portrait.
Giuseppe, or Joseph, or James Macpherson (1726-floruit 1778). 1 portrait.
Tim MacPherson. 2 portraits.
McQueen & Co (floruit 1820-1838). 2 portraits.
William MacQuitty (1905-2004). 10 portraits.
Jennifer McRae (1959-). 2 portraits.
J.C. McRae. 1 portrait.
Jean César Macret (born 1768). 1 portrait.
H.F.S. Macreth (floruit circa 1832). 1 portrait.
Ishbel McWhirter (1927-). 2 portraits.
Frederick Edward ('F.E.') McWilliam (1909-1992). 1 portrait.
T. Maddocks. 9 portraits.
George E. Madeley (floruit 1826-1850s). 11 portraits.
Russ Maden. 2 portraits.
Joseph Maes (1838-1908). 2 portraits.
James Magill. 2 portraits.
Eduard Magnus (1799-1872). 1 portrait.
Mayotte Magnus (1934-). 52 portraits.
Henry C. Maguire. 2 portraits.
Maguire, Lemercier & Co (floruit 1832). 1 portrait.
Thomas Herbert Maguire (1821-1895). 34 portraits.
Maguire and MacDonald. 1 portrait.
Lydia Ruth Maher (1954-). 1 portrait.
Rolf Mahrenholz (1902-1991). 4 portraits.
George Maile (floruit 1808-1824). 2 portraits.
C.F. Maillet (floruit 1787). 2 portraits.
Martin Maingaud. 4 portraits.
Mary Mainwaring (floruit 1822-1824). 2 portraits.
Maison Martinet (circa 1870-1880). 1 portrait.
Georges Maiteny (1920-1974). 3 portraits.
Marianne Majerus (1956-). 4 portraits.
John Major (floruit 1827). 1 portrait.
Thomas Major (1720-1799). 7 portraits.
Gianpetrino Malacrida (floruit 1489-1499). 1 portrait.
James Peller Malcolm (1767-1815). 1 portrait.
Hans Maler (before 1500-1529). 2 portraits.
Suzi Malin (1950-). 9 portraits.
Edward Malindine. 15 portraits.
Karel Van Mallery (1571-after 1635). 7 portraits.
Tricia Malley. 1 portrait.
Felix H. Man (Hans Baumann) (1893-1985). 16 portraits.
Edward Mandinian. 3 portraits.
Anthony Mandler. 1 portrait.
Michele Mang & Co. (floruit 1860s-1870s). 5 portraits.
Elektra Mangoletsi (1907-1993). 1 portrait.
Gered Mankowitz (1946-). 7 portraits.
Cathleen Sabine Mann (1896-1959). 2 portraits.
Harrington Mann (1864-1937). 1 portrait.
Samuel Manning Sr (1788-1842). 1 portrait.
Samuel Manning Jr (1816-1865). 1 portrait.
Leon Mannings. 1 portrait.
John Mansbridge (1901-1981). 5 portraits.
George R. Mansfield (floruit 1860s). 1 portrait.
John Manson (floruit 1786-1824). 1 portrait.
N. Mantagne. 1 portrait.
Mantell. 1 portrait.
Gildon Manton. 1 portrait.
G. Grenville Manton (1855-1932). 1 portrait.
Henri Manuel (floruit 1900). 1 portrait.
Manwine. 1 portrait.
Camille Manzini (floruit 1832-1842). 1 portrait.
Robert Mapplethorpe (1946-1989). 6 portraits.
Sydney March (1876-1968). 2 portraits.
Jean Marchand (1883-1941). 1 portrait.
Nathaniel Marchant (1739-1816). 1 portrait.
Giuseppe Filippo Liberati Marchi (1735?-1808). 7 portraits.
Giuseppe Filippo Liberati (Joseph) Marchi (circa 1735-1808). 1 portrait.
David J. Marcou (1950-). 1 portrait.
Robert Samuel Marcuard (1756-before 1788). 1 portrait.
Matthys van Marebeck (Marrebech) (circa 1659-1699). 1 portrait.
Louis Marescalchi. 1 portrait.
William Henry Margetson (1861-1940). 1 portrait.
Pierre-Jean Mariette (1694-1774). 1 portrait.
Clément Pierre Marillier (1740 - 1808). 1 portrait.
Princess Marina, Duchess of Kent (1906-1968). 1 portrait.
Marino Marini (1901-1980). 1 portrait.
Messrs Marion (floruit 1860s-1870s). 1 portrait.
A. Marion & Co.. 47 portraits.
A. Marion, Son & Co.. 49 portraits.
Markham. 4 portraits.
I. Markluin. 1 portrait.
J.L. Marks (floruit 1814-1832). 1 portrait.
T. Marlay. 1 portrait.
Brigid Marlin (1936-). 1 portrait.
Wolf Marloh (1971-). 1 portrait.
M. Marlow (floruit 17th century). 1 portrait.
Edmund Marmion (floruit 1650-1652). 2 portraits.
(Pietro) Carlo Giovanni Battista Marochetti, Baron Marochetti (1805-1867). 2 portraits.
M. Marrebeeck. 2 portraits.
Barry Marsden (1954-). 68 portraits.
Lola Walker (Lola Marsden) (1924-). 17 portraits.
Dean Marsh (1968-). 1 portrait.
Marsh. 1 portrait.
Benjamin Marshall (1767-1835). 1 portrait.
George Marshall. 1 portrait.
Jim Marshall. 1 portrait.
John Marshall (1818-1891). 1 portrait.
Lambert Marshall (1810-1870). 1 portrait.
William Marshall (floruit 1617-1649). 170 portraits.
William Marshall (floruit 1676-1725). 5 portraits.
William and Joseph Marshall (floruit 1707-1725). 1 portrait.
Marshall. 1 portrait.
Marshall. 1 portrait.
Marsh Brothers (floruit 1870s-1880s). 1 portrait.
Carlo Marsigli (floruit 1773-1778). 2 portraits.
Wilhelm Nicolai Marstrand (1810-1873). 1 portrait.
Captain Martin (George Matthew Martin?) (floruit 1856-1861). 2 portraits.
Martin & Sallnow (floruit 1885-1895). 3 portraits.
Albin Martin. 2 portraits.
Barry Martin. 1 portrait.
Charles Martin (1820-1906). 4 portraits.
David Martin (1737-1797). 10 portraits.
Eugène Louis Martin (1880-1954). 1 portrait.
Kenneth Martin (1905-1984). 2 portraits.
Rita Martin (1875-1958). 131 portraits.
R. Martin (floruit 1840). 1 portrait.
Clara Martineau (née Fell) (floruit 1887). 1 portrait.
Pietro Antonio Martini (1739-1797). 1 portrait.
Viger Martini. 1 portrait.
Martyn Bros. (floruit 1878-1899). 1 portrait.
G.H. Martyn & Sons (floruit 1878-1914). 2 portraits.
John Martyn (Martin) (floruit 1649-1680). 2 portraits.
Martyr & Morgan (floruit 1866-1870). 1 portrait.
Charles Marville (1816-1879). 1 portrait.
Edward Mascall (floruit in London circa 1650). 4 portraits.
Arnold Mason (1885-1963). 1 portrait.
J. Mason (floruit 1828). 1 portrait.
Sam Mason. 1 portrait.
W. Mason (floruit 1833). 2 portraits.
William Mason (1725-1797). 9 portraits.
William Henry Mason (floruit 1860s). 2 portraits.
Mason & Co (Robert Hindry Mason) (floruit 1858-1872). 68 portraits.
John James Masquerier (1778-1855). 21 portraits.
Jean Massard (1740-1822). 4 portraits.
L. Massard (floruit circa 1830). 1 portrait.
Antoine Masson (1636 - 1700). 2 portraits.
Master of the Stätthalterin Madonna (floruit 1549). 1 portrait.
Georgio Matarrese (floruit 1894). 1 portrait.
Adriaen Jacobz Matham (circa 1599 - 1660). 2 portraits.
Theodor Matham (1606-1676). 15 portraits.
Richard George Mathews (1870-1955). 9 portraits.
Mathews and Leigh (floruit 1807-1814). 1 portrait.
Gabriel Mathias (1719-1804). 6 portraits.
Charles Matthew (died 1916). 1 portrait.
(Henry) Colin Gray Matthew (1941-1999). 1 portrait.
Patrick Matthews. 1 portrait.
Alfred Mattison (1868-1944). 1 portrait.
James Maubert (died 1746). 3 portraits.
Charles Maucourt (1717-1768). 1 portrait.
Maujean (floruit 1860s). 6 portraits.
Maull & Co. (floruit 1866-1878). 70 portraits.
Maull & Polyblank (floruit 1854-1865). 228 portraits.
Maull & Fox (floruit 1877-1928). 24 portraits.
Paul Maupin (Maupain). 2 portraits.
Antoine Maurin (1793-1860). 7 portraits.
Nicolas-Eustache Maurin (1799-1850). 4 portraits.
Maurin. 4 portraits.
Maurizio. 1 portrait.
N.F. Maviez. 1 portrait.
Arthur Dampier May (floruit 1872-1914). 1 portrait.
Fred May (1891-1976). 21 portraits.
Philip William ('Phil') May (1864-1903). 20 portraits.
Philip William ('Phil') May and other artists (1864-1903). 1 portrait.
John Mayall (1842-1891). 1 portrait.
John Jabez Edwin Mayall (née Jabez Meal) (1813-1901). 274 portraits.
Joseph Parkin Mayall (1839-1906). 28 portraits.
J. Mayall. 1 portrait.
Mayall. 42 portraits.
Mayall & Co. (floruit 1887-1908). 21 portraits.
Mayall & Newman Ltd (floruit 1897-1900s). 1 portrait.
Edith Maybin (1969-). 1 portrait.
Mayer Brothers (floruit 1855-69). 13 portraits.
Arminius Mayer (Meyer) (died 1847). 1 portrait.
Carl Mayer (1798-1868). 1 portrait.
Lilian Mary Mayer (died 1945). 3 portraits.
Otto Mayer. 1 portrait.
Mayer & Pierson (floruit 1850s-1860s). 14 portraits.
Heliss Mayeuse. 1 portrait.
William Mayland (floruit 1850s-circa 1880). 2 portraits.
Thomas Maynard (floruit 1777-1812). 6 portraits.
Noel Mayne. 1 portrait.
Roger Mayne (1929-). 26 portraits.
Peter Mazell (floruit 1764-1797). 4 portraits.
François Mazot (floruit mid 17th century). 6 portraits.
Pellegrino Mazzotti (1785?-1870?). 1 portrait.
McCleary (floruit circa 1809). 1 portrait.
J. McCormick (floruit 1835). 4 portraits.
Don McCullin (1935-). 17 portraits.
McLean, Melhuish & Haes (floruit 1862-1863). 6 portraits.
Alasdair McLellan (1974-). 1 portrait.
Joseph Mead. 1 portrait.
Zac Mead (1979-). 1 portrait.
Joseph Kenny Meadows (1790-1874). 1 portrait.
R.M. Meadows (floruit 1798). 2 portraits.
C. Measom. 1 portrait.
W.B.M. Measor (floruit 1837-1872). 1 portrait.
Christian de Mechel (1757-1817). 5 portraits.
Joseph Mécou (1771-1837). 1 portrait.
The Medici Society Ltd. 2 portraits.
Keith Medley. 1 portrait.
(Charles) Robert Owen Medley (1905-1994). No portraits.
S. Medley. 2 portraits.
Anne Mee (née Foldsone) (circa 1770-1851). 19 portraits.
Nicolette Meeres (1938-). 1 portrait.
J. Meers. 1 portrait.
Sheila Cameron Meinertzhagen (née Macnamara). 1 portrait.
Lotte Meitner-Graf (1898-1973). 1 portrait.
A. Melaer. 3 portraits.
Melandri (floruit 1870s). 3 portraits.
Julian Melgrave. 1 portrait.
Arthur James ('A.J.') Melhuish (died 1895). 13 portraits.
Cernigliari Melilli (floruit 1906). 1 portrait.
Claude Mellan (1598-1688). 20 portraits.
Alexander Melville (floruit 1846-1885). 1 portrait.
Henry Melville. 2 portraits.
Vaughan Melzer (1945-). 2 portraits.
Renée Mendel (1908-). 1 portrait.
Albert Mendelssohn. 1 portrait.
Hayman Seleg Mendelssohn (1847-1908). 15 portraits.
R. Mendham. 1 portrait.
June Mendoza. 3 portraits.
Egidius Mengelberg (1770-1849). 1 portrait.
Anton Raphael Mengs (1728-1779). 8 portraits.
Bernard Meninsky (1891-1950). 1 portrait.
Mortimer Menpes (1855-1938). 5 portraits.
Tim Mercer. 13 portraits.
Charles Mercier (1834-after 1893). 2 portraits.
Philip Mercier (1691-1760). 22 portraits.
Luke Meredith (floruit 1684-1700). 1 portrait.
Kasper Merian (1627-1686). 1 portrait.
Matthäus Merian the Elder (1593-1650). 5 portraits.
Matthäus Merian the Younger (1621-1687). 4 portraits.
J. Merigot (floruit 1772-1816). 1 portrait.
Cornelis Van Merlen (1654-1723). 3 portraits.
Theodorus Merlen (born 1609?). 6 portraits.
Merrick (floruit 1850s-1870s). 1 portrait.
Anna Lea Merritt. 1 portrait.
John Ralph Merton (1913-). 2 portraits.
Messrs Robinsons (floruit 1793). 3 portraits.
Metcalf & Welldon (Weldon) (floruit 1870s-1880s). 2 portraits.
Paul Ayshford Methuen, 4th Baron Methuen (1886-1974). 1 portrait.
Metropole Studios (floruit 1910s). 1 portrait.
Cornelis Metsys (Massys) (1508 or 1510-after 1580). 4 portraits.
Conrad Martin Metz (1749-1827). 2 portraits.
Johann Jakob Metzger (floruit 1670). 2 portraits.
Meycon. 2 portraits.
Benjamin Meyer. 1 portrait.
Conrad Meyer (1618-1689). 1 portrait.
F. Meyer. 4 portraits.
Henry Hoppner Meyer (1782?-1847). 172 portraits.
Jeremiah Meyer (1735-1789). 7 portraits.
Everard Meynell (1882-1926). 1 portrait.
Cornelis Meyssens (born before 1640). 3 portraits.
Johannes Meyssens (1612-1670). 36 portraits.
Peter Meyvis. 1 portrait.
Michael and Nicholas Hanhart (floruit 1839-1865). 105 portraits.
Jean Baptiste Michel (1748-1804). 2 portraits.
Charles Cornwallis Michell (1793-1851). 1 portrait.
C. Middlemist. 6 portraits.
J.G. Middleton. 2 portraits.
D. Midwinter (floruit 1721). 1 portrait.
Michiel Jansz. van Miereveldt (1567-1641). 52 portraits.
John Miers (1756-1821). 10 portraits.
Nicholas Mignard (1606-1668). 1 portrait.
Paul Mignard (circa 1639 - 1691). 1 portrait.
Pierre Mignard (1612-1695). 7 portraits.
Frans van der Mijn (or Myn) (1719-1783). 9 portraits.
Mike Hoban (1967-). 1 portrait.
James Milbourne (circa 1745-1826). 1 portrait.
Arthur Miles (floruit 1851-1879). 1 portrait.
Frank Miles (1852-1891). 2 portraits.
Sir John Everett Millais, 1st Bt (1829-1896). 26 portraits.
James Millar (floruit 1763-1805). 1 portrait.
William Millar. 2 portraits.
Millar & Harris. 3 portraits.
Alec Miller (1879-1961). 1 portrait.
Andrew Miller (died 1763). 16 portraits.
Dianne Miller. 1 portrait.
Graham Miller (1948-). 2 portraits.
John Miller. 4 portraits.
John Douglas Miller (born 1860-floruit 1903). 5 portraits.
J. Miller. 6 portraits.
Lee Miller (1907-1977). 16 portraits.
Rosalind Miller (1971-). 3 portraits.
Tom Miller (1962-). 30 portraits.
William Miller (circa 1740-circa 1810). 3 portraits.
William Miller (floruit 1805). 2 portraits.
William Miller (floruit 1674-1689). 1 portrait.
William Miller (1796-1882). 1 portrait.
William Edwards Miller (floruit 1873-1929). 2 portraits.
Miller. 2 portraits.
Millet. 1 portrait.
George T. Millichap (floruit 1855-1874). 1 portrait.
Auguste Millière (floruit 1876-1896). 1 portrait.
Etienne Millner. 1 portrait.
Ernest Herbert ('E.H.') Mills (1874-1942). 7 portraits.
Thomas Millward. 1 portrait.
Donald Milne (1969-). 1 portrait.
Robert Milne (floruit 1890s). 8 portraits.
James Donald Milner. 3 portraits.
Thomas Milnes (1813-1888). 1 portrait.
Ernst Milster (born 1835). 1 portrait.
Thomas Milton (circa 1743-1827). 4 portraits.
Milton. 1 portrait.
A & G Minasi (floruit 1811). 1 portrait.
James Anthony Minasi (died 1865). 2 portraits.
John Minihan (1946-). 25 portraits.
Alex Minter. 2 portraits.
John Minton (1917-1957). 3 portraits.
Lizinka Aimée Zoe de Mirbel (1796-1849). 1 portrait.
Rizwan Mirza. 3 portraits.
Mishkin (floruit 1920s). 1 portrait.
Mistruzzi. 1 portrait.
James Mitan (floruit 1798-1814). 4 portraits.
Andrew Mitchell (1945-). 1 portrait.
Bernard Mitchell (1947-). 10 portraits.
Edward Mitchell (floruit 1805-1830). 6 portraits.
Jack Mitchell. 1 portrait.
John Mitchell (floruit 1838-1863). 81 portraits.
Thomas Mitchell (floruit 1798-1830). 1 portrait.
Dario Mitidieri (1959-). 1 portrait.
Lisette Model (Elise Felic Amelie Seybert) (1906-1983). 1 portrait.
Curtis Moffat (1887-1949). 6 portraits.
John Moffat (1819-1894). 15 portraits.
Moffet (floruit 1920s). 7 portraits.
Thomas Mogford. 1 portrait.
Palani Mohan (1967-). 1 portrait.
Lucia Moholy (1894-1989). 9 portraits.
E. Moira. 2 portraits.
Moira & Haigh (floruit 1861-1870). 9 portraits.
Herman Moll (died 1732). 1 portrait.
J. Mollison. 1 portrait.
Anthony Molteno (floruit 1783-1830). 8 portraits.
J.A. Molteno. 2 portraits.
Molteno, Colnaghi & Co. 1 portrait.
Balthasar Moncornet (circa 1600-1668). 45 portraits.
Augustin Mongin (1843-1911). 1 portrait.
Charles Monnet (1732-after 1808). 3 portraits.
Sir Walter Thomas Monnington (1902-1976). 2 portraits.
Jean-Baptiste Monnoyer (1634-1699). 1 portrait.
Henry Monro (1791-1814). 2 portraits.
Antoine Maxime Monsaldy (1768-1816). 1 portrait.
Mr & Mrs Monson (floruit 1860s). 1 portrait.
Luigi Montabone (died 1877). 4 portraits.
T. Montague (floruit 1794). 1 portrait.
Horace Montford (died 1918). 2 portraits.
David Montgomery (1937-). 2 portraits.
Ronald Moody (1900-1984). 2 portraits.
Sir Francis Graham Moon, 1st Bt (1796-1871). 13 portraits.
Moon, Boys & Graves (floruit 1831). 4 portraits.
Albert Joseph Moore (1841-1893). 3 portraits.
Brenda Moore (Mrs Campbell Taylor) (floruit 1925-1964). 1 portrait.
Christopher Moore (1790-1863). 3 portraits.
Ernest Moore (1865-1940). 2 portraits.
Henry Moore (1831-1895). 1 portrait.
Henry Moore (1898-1986). 1 portrait.
John Collingham Moore (1829-1880). 1 portrait.
John Francis Moore (died 1809). 1 portrait.
Jonathan Moore (1968-). 1 portrait.
Joseph Moore (1817-1892). 1 portrait.
J. Moore. 6 portraits.
Samuel Moore (floruit 1680-1720). 1 portrait.
William Moore (floruit 1784-1793). 1 portrait.
Moore. 2 portraits.
Carton Moore-Park (1877-1956). 1 portrait.
Anthonis Mor (Antonio Moro) (1516x20–1575/6). 4 portraits.
Antonis Mor (1519-1575). 10 portraits.
Jose Maria Mora (1849-1926). 2 portraits.
Morace. 1 portrait.
Joseph Mordecai (1851-1940). 2 portraits.
C. Morgan (floruit 1786). 1 portrait.
Edward Morgan. 2 portraits.
Frank G. Morgan. 1 portrait.
George T. Morgan. 2 portraits.
Gwen Morgan. 1 portrait.
Howard James Morgan (1949-). 8 portraits.
Matt Somerville Morgan (1836-1890). 2 portraits.
Giovanni Elia Morghen (1721-after 1789). 1 portrait.
Raphael Morghen (1758-1833). 5 portraits.
David Morier (1705?-1770). 4 portraits.
Edmond Morin (1824-1882). 2 portraits.
Jean Morin (circa 1605 - 1650). 2 portraits.
David Morison (floruit 1793-1850). 1 portrait.
George Morland (1763-1804). 3 portraits.
Henry Robert Morland (1719?-1797). 18 portraits.
Ebenezer Morley (floruit 1834). 1 portrait.
Lewis Morley (1925-). 294 portraits.
Albin Moroder (1923-). 1 portrait.
Garrett Morphey (died 1716). 1 portrait.
Lady Ottoline Morrell (1873-1938). 1687 portraits.
Philip Edward Morrell (1870-1943). 338 portraits.
Morris Singer & Co.. 1 portrait.
Barbara Morris. 3 portraits.
Sir Cedric Lockwood Morris (1889-1982). 2 portraits.
Ebenezer Butler Morris (floruit 1833-1863). 1 portrait.
H. Morris (floruit 1870s). 1 portrait.
John Morris (floruit 1777-1782). 1 portrait.
J. Morris. 1 portrait.
Keith Morris (1938-2005). 2 portraits.
Mary ('May') Morris (1862-1938). 1 portrait.
P. Morris. 1 portrait.
William Morris (1874-1928). 1 portrait.
Morris and Co.. 3 portraits.
Alistair Morrison (1957-). 80 portraits.
J. Morrison. 2 portraits.
W. Morrison (floruit 1822). 1 portrait.
H. Mortier. 1 portrait.
John Hamilton Mortimer (1740-1779). 4 portraits.
Justin Mortimer (1970-). 2 portraits.
R. Mortimer. 1 portrait.
Constance Mortimore (Mrs Kirk) (floruit 1896-1899). 1 portrait.
Henry Mortlock (Mortlack) (floruit 1660-1709). 1 portrait.
Henry Mortlock (floruit 1834). 2 portraits.
Andrew Morton (1802-1845). 5 portraits.
Cavendish Morton (1874-1939). 104 portraits.
Edward Morton (floruit 1841-1850). 12 portraits.
Mosbruck. 1 portrait.
Felix Moscheles (1833-1917). 1 portrait.
Henry Moseley (floruit 1842-1866). 3 portraits.
R. Moseley. 2 portraits.
Lida Moser. 6 portraits.
Henry Moses (circa 1782-1870). 2 portraits.
E. Moses & Sons (floruit 1860s). 1 portrait.
Jean Laurent Mosnier (1743-1808). 1 portrait.
Dennis Moss (floruit 1910s). 1 portrait.
Pete Moss (1960-). 4 portraits.
Alexander Mosses. 5 portraits.
Mosses. 2 portraits.
William Henry Mote (floruit 1842-1862). 42 portraits.
W.T. Mote (floruit 1833-1836). 4 portraits.
Marie-Louise von Motesiczky (1906-1996). 1 portrait.
Charles Etienne Pierre Motte (1785-1836). 4 portraits.
Charles Mottram (1807-1876). 1 portrait.
François Nicholas Mouchet (1750-1814). 1 portrait.
A.R. Mowbray (floruit 1863-1866). 1 portrait.
Joseph Moxon (1627–1691). 1 portrait.
Rodrigo Moynihan (1910-1990). 7 portraits.
Stefan Mrozewski (floruit 1929). 11 portraits.
James Mudd (1821-1906). 6 portraits.
Vera Mukhina (born 1889). 1 portrait.
Bertha Müller (1848-1925). 1 portrait.
Friedrich Theodor Müller (born 1797). 1 portrait.
Gustav Adolph Müller (1694-1767). 1 portrait.
Heinrich Müller (floruit 1821-1839). 1 portrait.
Johann Sebastian Müller (circa 1715-1792). 27 portraits.
Robert Muller (1773-after 1800). 6 portraits.
William James Müller (1812-1845). 1 portrait.
Henry Mullin (1811-1872). 1 portrait.
Ferdinand Mulnier (floruit 1860s-1880s). 2 portraits.
William Mulready (1786-1863). 5 portraits.
Bernard Mulrenin (1803-1868). 1 portrait.
George Francis Mulvany (1809-1869). 1 portrait.
Edvard Munch (1863-1944). 1 portrait.
Jan (Johannes Willemsz. van) Munnickhuysen (circa 1626 - after 1693). 1 portrait.
Sir Alfred James Munnings (1878-1959). 1 portrait.
Bernard Munns. 1 portrait.
Alexander Munro (1825-1871). 1 portrait.
Gérard Muntinck (Mountain) (floruit 1660). 2 portraits.
Muntz. 1 portrait.
Nickolas Muray (1892-1965). 1 portrait.
Hector Murchison (floruit 1910s). 2 portraits.
John C. Murdoch (19th century). 2 portraits.
Bartolomé Estebán Murillo (1618-1682). 3 portraits.
Ben Murphy (1961-). 12 portraits.
Charlotte Murphy (1972-). 1 portrait.
Denis Brownell Murphy (1763-1842). 4 portraits.
John Murphy (floruit 1780-1820). 6 portraits.
Charles Fairfax Murray (1849-1919). 3 portraits.
Charles Oliver Murray (1842-1923). 1 portrait.
G. Murray (floruit 1795). 3 portraits.
Henry Murray (floruit 1860s). 1 portrait.
John Murray (1778-1843). 11 portraits.
John George Murray (floruit 1821-1856). 3 portraits.
John Somerset Murray (1904-1992). 4 portraits.
Maggie Murray. 4 portraits.
R. Murray. 1 portrait.
Thomas Murray (1663-1735). 57 portraits.
Thomas Murray (1768-1843). 19 portraits.
Richard Murry (1902-1984). 1 portrait.
Museum and Complete Magazine (floruit 1765). 1 portrait.
Victor Musgrave (1919-1984). 1 portrait.
John Musgrave-Wood ('Emmwood') (1915-1999). 3 portraits.
Helen Muspratt (1905-2001). 8 portraits.
Charles Muss (1779-1824). 2 portraits.
Leszek Muszynski (1923-). 1 portrait.
H. Mutlow (floruit 1784). 4 portraits.
Robert Muys (1742-1825). 1 portrait.
Eveleen Myers (née Tennant) (1856-1937). 125 portraits.
Silvia Constance Myers (1883-1957). 1 portrait.
Myers. 1 portrait.
Ishbel Myerscough (1968-). 6 portraits.
J. Mynde (floruit 1740-1770). 5 portraits.
Daniel Mytens (1590-1647). 42 portraits.
A.M. (floruit 1860s). 1 portrait.
