Alexander Parkinson Singleton (5 August 1914 – 22 March 1999) was an English first-class cricketer. An all-rounder, he was a right-handed opening batsman and bowler. He played for Worcestershire, captaining the side in 1946, and also captained Oxford University and Rhodesia. In all he scored 4,700 runs and took 240 wickets in first-class cricket. Singleton also played league football. His brother Michael played three times for Worcestershire in 1946.