Frank Thomas Whitney (February 18, 1856 – October 30, 1943), nicknamed "Jumbo," was an American Major League Baseball player.

He played outfield for the 1876 Boston Red Caps.

His younger brother, Art Whitney, was also a professional baseball player.

At the time of his death he had been the last living player from the 1876 season.

This biographical article relating to an American baseball outfielder born in the 1850s is a stub.