Leonard Thomas Kelly (1913-1981) was an Australian premiership winning rugby league player who played in the 1930s and 1940s with St. George.

Known as 'The Deacon', Kelly played his entire football career at St George.

Kelly played twelve seasons for St. George between 1933 and 1944, the highlight being his vice-captaincy in the 1941 Grand Final winning team.

Upon Buckley's death in 1973, it was assumed that Kelly would run rugby league in New South Wales, but the position was ultimately given to a more youthful Kevin Humphreys.

[3] Len 'The Deacon' Kelly died suddenly at his Arncliffe, New South Wales home on 3 November 1981, age 68 after a long illness.