John Trotter (died 1792) was an Irish artist and portrait painter.

[1] The first record of John Trotter appear in 1756, when his work was lauded by the Hibernian Journal while he was still a student in the Dublin Society's School.

[2][3] One of his most noted works is a group portrait he executed for the boardroom of the Dublin Bluecoat school, which was most likely painted around 1779.

Along with a self portrait of Trotter himself, the painting also depicts John Wilson the secretary of the school, J. Tudor, Alderman Trulock, Warner, Thomas Ivory, and Simon Vierpyl.

[1] Trotter's works have been featured in exhibitions such as the An Exhibition of 17th, 18th, 19th and 20th Century Irish Paintings at Gorry Gallery,[6] and the Exhibiting Art in Georgian Ireland at the Irish Georgian Society in 2018, which displayed a work by Trotter from a private collection, Portrait of an officer of an Irish Volunteer Regiment in a wooded landscape, holding a spontoon.