Calvin O'Neale Purdin (February 22, 1921 – December 29, 1982) was an American football halfback.

[2] He was selected by the Chicago Cardinals in the 25th round (233rd overall pick) of the 1943 NFL draft.

He played for the Cardinals during the 1943 season, appearing in four games.

In 1946, Purdin played in the All-America Football Conference (AAFC) for the Miami Seahawks and Brooklyn Dodgers.

This biographical article relating to an American football running back born in the 1920s is a stub.