Julius Caesar Ibbetson (1759-1817). 2 portraits.

Sal Idriss (1970-). 20 portraits.

Thomas Henry Illidge (1799-1851). 3 portraits.

Leslie Illingworth (1902-1979). 1 portrait.

Thomas Illman (floruit 1824-died 1860). 4 portraits.

Illustrated News. 2 portraits.

Imperial Photographic Co. (floruit 1880-1884). 1 portrait.

John William Inchbold (1830-1888). 1 portrait.

Charles Cromwell Ingham (1796-1863). 1 portrait.

David N. Ingles (floruit 1913-1923). 1 portrait.

Alexander Adam Inglis (1847 or 1848-after 1916). 1 portrait.

John Elmsly Inglis (died 1933). 1 portrait.

François-Robert Ingouf (1747-1812). 1 portrait.

Jean Auguste Dominique Ingres (1780-1867). 1 portrait.

Kristinn Ingvarsson (1962-). 3 portraits.

Henry Guy Inskipp (floruit 1860s-1870s). 1 portrait.

James Inskipp (1790-1868). 1 portrait.

Howard Instead (floruit 1918-1935). 2 portraits.

International Film Service (Floruit 1914-1918). 1 portrait.

Iocetel. 1 portrait.

Geoffrey Ireland (1923-). 28 portraits.

Jane Ireland (floruit 1792-1794). 2 portraits.

Samuel Ireland (died 1800). 12 portraits.

John or James Irvine. 1 portrait.

J. Isaac (floruit 1837). 1 portrait.

Isac Isaacsz (Isacsen) (1599-1665). 1 portrait.

Jean Baptiste Isabey (1767-1855). 3 portraits.

Pam Isherwood. 1 portrait.

Adam Islip (floruit 1630). 1 portrait.

Isaac Israels (1865-1934). 1 portrait.

Peter Isselburg (Yselburg, Eisselburg) (1568 or 1580-1630). 3 portraits.