Henry Constantine Richter (7 June 1821 – 16 March 1902) was an English zoological illustrator who produced a very large number of skillful coloured lithographs of birds and mammals, mainly for the scientific books of the renowned English 19th century ornithologist John Gould. Many of the original drawings used by Richter as the basis for his coloured lithographs were by Gould's wife, Elizabeth Coxen, produced before her death in 1841.