Henry Edridge ARA (Paddington, London, 1768 – London, 23 April 1821) was a prominent English watercolourist and miniaturist, principally known for his portraits of public figures including Lord Nelson, William Pitt the Younger, and John Wesley. He apprenticed at age fifteen to William Pether, a mezzotinter and landscapist, and later studied at the Royal Academy Schools, where he enrolled in 1784.

Edridge’s early portraits were executed on ivory, later transitioning to paper using black lead and India ink, often with ornate backgrounds. He eventually developed a refined watercolour technique that combined the richness of oil painting with the spontaneity of drawing. His subjects extended beyond portraiture to include serene, romantic landscapes influenced by the Monro School, a circle of artists that gathered at the home of Dr. Thomas Monro. This group included J.M.W. Turner, Thomas Hearne, and Thomas Girtin. Edridge’s association with Monro is documented in his portrait of the physician, now held by the Indianapolis Museum of Art.

He exhibited widely, and his works are held in major collections including the South Kensington Museum and the National Portrait Gallery. Edridge was elected an Associate of the Royal Academy in November 1820 but died shortly thereafter from an asthma attack.