William Moseley (born 1945) is a former South African international lawn bowler.

Moseley came to prominence in 1976 when he won the pairs, fours and team gold medal at the 1976 World Outdoor Bowls Championship in Johannesburg.

[1] In the fours with Kevin Campbell, Nando Gatti and Kelvin Lightfoot the team won 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.

[2] Moseley played bowls from the age of eight and reached his first South African National Bowls Championships singles quarter final in 1970 before winning the national fours in 1971.