Kelvin 'Kelly' Thomas Lightfoot (1925-date of death unknown) was a former South African international lawn bowler.

Lightfoot came to prominence in 1966 when he won a triples bronze medal at the 1966 World Outdoor Bowls Championship.

Ten years later in 1976 he won the triples, fours and team gold medal at the World Outdoor Championships in Johannesburg.

[1] In the fours with Campbell, Gatti and Bill Moseley they repeated the feat of winning 14 of the 15 matches played.

[1] The South African team completed a clean sweep of all events at the 1976 World Outdoor Bowls Championship.