Donald Roy Sidle (June 21, 1946 – May 25, 1987) was an American professional basketball player.

[1] Sidle was selected by the San Francisco Warriors with the 29th pick of the 1968 NBA draft, but he spent his professional career in the American Basketball Association as a member of the Miami Floridians, Denver Rockets, Indiana Pacers, and Memphis Pros.

Over four seasons (1968–1972) he averaged 13.5 points and 8.0 rebounds per game.

He ranked eighth in the ABA in rebounds per game (12.9) and seventh in total rebounds (1,082) during the 1969-70 ABA season.

[2] This biographical article relating to a United States basketball player, coach, or other figure born in the 1940s is a stub.