The 1915 Massachusetts gubernatorial election took place on November 2, 1915. The Republican nominee, Samuel W. McCall defeated the incumbent Democratic Governor David I. Walsh, with 46.97% of the vote.

Samuel Walker McCall was an American Republican lawyer, politician, and writer from Massachusetts. He was for twenty years (1893–1913) a member of the United States House of Representatives, and the 47th Governor of Massachusetts, serving three one-year terms (1916–1919). He was a moderately progressive Republican who sought to counteract the influence of money in politics.