Frank Harold Gabler (November 6, 1911 – November 1, 1967) was an American right-handed Major League Baseball pitcher who played for the New York Giants (1935–37), Boston Bees (1937–38) and Chicago White Sox (1938).

Gabler made his major league debut on April 19, 1935, with the Giants.

He began 1937 with the New York team, however he was traded to the Bees with cash for Wally Berger on June 15.

Gabler began the 1938 season with the Bees, appeared in one game for them and was then purchased by the White Sox on May 2.

He died from a heart attack at age 55 in Long Beach, California, on November 1, 1967, five days shy of his birthday.