Charles Cromwell Ingham (1796 or 1797 – 10 December 1863) was an Irish portrait painter and later a founder of the New York National Academy of Design during the 19th century. Ingham was a descendant of a man who went to Ireland as an officer in Cromwell's army (hence his middle name). He was born in Dublin in 1796 or 1797, studying art from 1809 to 1813 at The Dublin Institution with William Cuming before immigrating to the United States in 1816 or 1817. Settling in New York City, he distinguished himself by his oil painting, but also in watercolor on ivory, a standard medium for miniature portraits since the 18th century. His work in oil is marked by a high finish achieved by successive glazings.