Winthrop Chandler (6 April 1747 – 9 July 1790) was an American artist.
Chandler was born in Woodstock, Connecticut. He was the son of William Chandler, a farmer, and Jemima Bradbury Chandler of Woodstock, CT. After his father's death in 1754, Chandler pursued a career as a portrait and ornamental painter. Over time he pursued a variety of visual arts, including gilding, carving and illustrating, as well as portraiture, landscape and house painting. He lived and worked all his life in Woodstock, where he died in 1790. There is a painting by Chandler in the Worcester Art Museum in Massachusetts (The Homestead of Timothy Ruggles).