Spencer Dewey Adams (June 21, 1898 – November 24, 1970) was a Major League Baseball player.

He played with the Pittsburgh Pirates in 1923, the Washington Senators in 1925, the New York Yankees in 1926 and the St. Louis Browns in 1927.

Adams played the infield and batted and threw right-handed.

After his baseball days, he was a maintenance worker for the Utah State Highway Department.

This biographical article relating to an American baseball infielder is a stub.