Alfred H. Chapin Jr. (July 13, 1901 – January 1961) was an American tennis player.

[1] Chapin grew up in Springfield, Massachusetts and was a graduate of Williams College.

His tournament finals included a straight sets win over Bill Tilden at the 1926 Connecticut Championships.

He teamed up with Tilden to make the doubles final of the 1926 U.S. National Championships.

[2] Outside of tennis, Chapin was a banker and served as director of the Western Massachusetts Bank, before relocating to California and working in floor coverings.