Frank Fuller Saunders (1902–1978) was an Australian rugby league player who played in the 1920s.

Background Saunders was born in Rockdale, New South Wales on 11 November 1902.

Playing career Frank 'Fatty' Saunders played with St. George during the clubs' foundation years. He played seven seasons with Saints between 1923 and 1929 including St. George's first grand final in 1927. Saunders also represented N.S.W. on two occasions in 1924–1925.

Post playing After his retirement from football, he was a committeeman and loyal servant of the St. George club for most of his life.Alan Whiticker/Glen Hudson: Encyclopedia of Rugby League Players. 1995. ()

Death Saunders died from cancer on 19 July 1978.Sydney Morning Herald: Death Notice 20 July 1978

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