Frederick Sydney Stolle, AO[4] (born 8 October 1938) is an Australian former amateur world No.

Stolle is notable for being the only male player in history to have lost his first five Grand Slam singles finals, all but one were to Roy Emerson, the fifth of which he led by two sets to love.

[5] At Wimbledon and the Australian Championships he finished as runner-up in these tournaments and losing to compatriot Roy Emerson on no fewer than five occasions.

He currently provides commentary on Grand Slam tennis tournaments for Australia's Fox Sports and the Nine Network.

[12] He received an Australian Sports Medal in 2000 and was made an Officer of the Order of Australia in 2005.