Gerrit Jan Michaëlis (1775, Amsterdam - 1857, Haarlem), was a painter from the Netherlands.
He was the son of the sculptor H.C. Michaëlis who studied at the Koninklijke Academie voor Beeldende Kunsten (Amsterdam Royal Academy of Art) and became a member of the Amsterdam drawing society called "Tekengenootschap Zonder Wet of Spreuk".[1] He was the pupil of George Nikolaus Ritter and Jurriaan Andriessen, and won a prize at the Amsterdam drawing academy Felix Meritis in 1805.[1] [2] He continued to send in examples of his art which met with success in Amsterdam competitions in the years 1808, 1810, 1813, 1814, 1816, and 1818.[2]
He moved to Haarlem to succeed Wybrand Hendriks as the curator and live-in kastelein of the art collection at the Teylers Museum during the years 1819-1854.[1] He is known for his landscapes and was also the director of the Haarlem Stadstekenacademie.[1]