Jerry Lee Robertson (October 13, 1943 – March 24, 1996) was an American professional baseball pitcher.

He pitched in the very first game in Montreal Expos history, contributing 1.1 innings of scoreless relief to an 11–10 victory over the New York Mets on April 8, 1969.

He also had the best earned run average (ERA) (3.96) of any of the Expos pitchers who started 15 or more games during that inaugural season.

[1] Robertson was traded by the Expos to the Detroit Tigers on December 3, 1969, for veteran right-handed pitcher Joe Sparma.

On March 30, 1971, the Tigers traded him to the New York Mets, and he never again made it back to the big leagues.