The Gallery holds the most extensive collection of portraits in the world. Search over 215,000 works, 150,000 of which are illustrated from the 16th Century to the present day.

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Artists A-Z

This list also includes photographers, printers and publishers

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L.O.. 1 Portrait

'H.C.O.' (active 1909-1911). 17 Portraits

Jonathan Oakes (1961-). 1 Portrait

Harry Lawrence Oakley (1882-1960). 23 Portraits

Octavius Oakley (1800-1867). 6 Portraits

Oakley & Sidebottom (active 1900s). 1 Portrait

Mark Oates (active 1799). 1 Portrait

Colin O'Brien (1940-). 1 Portrait

Joanne O'Brien. 3 Portraits

Roy ('Johnny') O'Brien. 1 Portrait

Michael James O'Brien (1951-). 1 Portrait

Humphrey Ocean (Humphrey Anthony Erdeswick Butler-Bowdon) (1951-). 12 Portraits

Paul O'Connell. 7 Portraits

James Arthur O'Connor (1792-1841). 1 Portrait

M. O'Connor (active circa 1834). 3 Portraits

Octopus Publishing Group Ltd (1971-). 1 Portrait

Chris O'Dell (1941-). 6 Portraits

Francesca Odell. 3 Portraits

Odieuvre (active 1742-1748). 1 Portrait

Olivia Odiwe (1989-). 1 Portrait

Alexander O'Driscoll (active 1840-1844). 3 Portraits

Ernst Ferdinand Moritz Oertel (1804-1869). 1 Portrait

Ino I. Offord (active 1897). 1 Portrait

Chris Ofili (1968-). 1 Portrait

David Ogborne (1700-1768). 5 Portraits

John Ogborne (1755-1837). 20 Portraits

Harry Ogden (1916-1998). 1 Portrait

Perry Ogden (1961-). 2 Portraits

Ogden's. 231 Portraits

Maurice Ogle (active 1826). 1 Portrait

Thomas Ogle (active 1860s). 1 Portrait

Frank Oglesbee. 1 Portrait

Samuel Oglesby. 1 Portrait

Ogles, Duncan & Cochran (active 1815). 1 Portrait

Kane O'Hara (active circa 1803). 1 Portrait

Nicholas Okes (active 1606-39). 2 Portraits

Samuel Okey (active 1721-1756). 2 Portraits

Samuel Okey (1741?-in or after 1780). 6 Portraits

Dominic Old (1963-). 8 Portraits

Anton Oleszczynski (1794-1879). 1 Portrait

Dominique Olida. 1 Portrait

Josh Olins (1980-). 5 Portraits

Thomas Olive (circa 1748-1799). 2 Portraits

Archer James Oliver (1774-1842). 11 Portraits

Isaac Oliver (circa 1565-1617). 72 Portraits

John Oliver (1616-1701). 2 Portraits

Mabel Oliver. 1 Portrait

Peter Oliver (circa 1589-1647). 17 Portraits

Sydney Haldane Olivier, 1st Baron Olivier (1859-1943). 3 Portraits

Herbert Olivier (1861-1952). 1 Portrait

Dominick Andrew Olivieri (active 1820-1833). 1 Portrait

Alan Olley. 6 Portraits

Ruan O'Lochlan. 3 Portraits

Hans Christian Olsen (1845-1909). 1 Portrait

Sean O' Mordha. 1 Portrait

One Four Two Music Limited (active 1960s). 1 Portrait

Henry Nelson O'Neil (1817-1880). 1 Portrait

Desmond O'Neill (1923-2003). 16 Portraits

George Bernard O'Neill (1828-1917). 1 Portrait

Mary O'Neill (died 1987). 1 Portrait

Terry O'Neill (1938-2019). 78 Portraits

The One Studio (active 1910s). 2 Portraits

F. Onwhyn (active mid 19th century). 4 Portraits

Joseph Onwhyn (active 1820-1870). 4 Portraits

Ivan Opffer (1897-1980). 21 Portraits

Amelia Opie (1769-1853). 1 Portrait

Catherine Opie (1961-). 1 Portrait

John Opie (1761-1807). 148 Portraits

Julian Opie (1958-). 6 Portraits

Opie Ltd. 1 Portrait

Moritz Daniel Oppenheim (1800-1882). 1 Portrait

Joseph Oppenheimer (1876-1967). 2 Portraits

Bill Orchard (1940-). 1 Portrait

Robert Orchard (circa 1783-active 1804). 1 Portrait

Sir William Quiller Orchardson (1832-1910). 5 Portraits

Cuthbert Julian Orde (1888-1968). 1 Portrait

Bryan Organ (1935-). 16 Portraits

Giovanni Orlandi (active 1590-1640). 1 Portrait

Daniel Orme (1766-1837). 15 Portraits

Edward Orme (1775-1848). 36 Portraits

Orme Jr (active 1795). 2 Portraits

Sir William Orpen (1878-1931). 29 Portraits

Christopher John ('Chris') Orr (1943-). 1 Portrait

Stephens Orr (died 1990). 1 Portrait

William Somerville Orr & Co (active 1838-1857). 1 Portrait

Carlo Orsi (active 1881-1896). 1 Portrait

E. Ortner. 1 Portrait

Clara Osborne (active 1910s). 2 Portraits

Li Osborne (née Luisa Friedericke Susanna Wolf, later Louise Hutchinson-Wolf) (1883-1968). 5 Portraits

Malcolm Osborne (1880-1963). 9 Portraits

Walter Frederick Osborne (1859-1903). 1 Portrait

Anthony Osmond-Evans. 1 Portrait

Alessandro Ossani (active 1857-1891). 3 Portraits

Ostermayr (active 1900s-1920s). 2 Portraits

Herbert Charles Osterstock (1876-1942). 1 Portrait

Ostervald the Elder (active 1817-1840). 1 Portrait

Tim O'Sullivan (1959-). 4 Portraits

John Oswald (active 1737-1743). 4 Portraits

Frederick Ottens (active 18th century). 1 Portrait

Joachim Ottens (active 1663-1719). 2 Portraits

Thomas Ottley (active 1842-1915). 1 Portrait

F. Otto's School of Photography (active 1860s). 1 Portrait

P. Oudry (active 1578). 1 Portrait

Walter William Ouless (1848-1933). 40 Portraits

Sir William Ouseley (1767-1842). 3 Portraits

John Outrim (1810-active 1874). 3 Portraits

Horace Ové (1939-). 12 Portraits

Jeff Overs. 3 Portraits

Henry Overton (1675 or 1676-1751). 9 Portraits

John Overton (1639 or 1640-1713). 8 Portraits

Mary Overton (active 1745-1748). 1 Portrait

Philip Overton (circa 1680-1745). 16 Portraits

Thomas Overton (active 1818-1838). 3 Portraits

Arthur A. Owen. 1 Portrait

John Owen (active 1860s-1890s). 1 Portrait

Mike Owen (1954-). 32 Portraits

William Owen (1769-1825). 97 Portraits

Christopher Owens. 1 Portrait

'Owl' (active 1913). 22 Portraits

Oxford University Press. 1 Portrait

The Oxford Fine Art Galleries. 1 Portrait

The Oxford School of Photography & Colouring (active 1860s). 2 Portraits

David Jowett Greaves Oxtoby (1938-). 2 Portraits