Moses Gill (January 18, 1734 – May 20, 1800) was a Massachusetts politician who briefly served as the state's Acting Governor. He is the state's only acting governor to die in office. A successful businessman, he became one of the leading settlers of Princeton, Massachusetts, entering politics shortly before the American Revolutionary War. He served on the Massachusetts Provincial Congress's executive committee until the state adopted its constitution in 1780, after which he continued to serve on the state's Governor's Council.