Music

• Tony Williams (drummer) (1945–1997), American jazz drummer
• Tony Williams (English musician) (born 1947), English bassist in Stealers Wheel and Jethro Tull
• Tony Williams (singer) (1928–1992), American lead singer with The Platters
• The WRLDFMS Tony Williams , American R&B and soul singer

Sports

• Tony Williams (born 1975) was a defensive tackle in American football.
• Tony Williams (born 1988) is an Australian rugby league footballer.
• Tony Williams (born 1938) was a swimmer from Sri Lanka who competed in the Olympics.
• Tony Williams (born 1976) was an American soccer player who has retired.
• Tony Williams (born 1978) is an American basketball player.
• Tony Williams (born 1943) won the Formula 1 Powerboat World Grand Prix in 1981.

Others

• Tony Williams (author), British poet and writer
• Tony Williams (politician) (1928–2012), Australian politician
• Tony Williams (film executive), British film producer
• A. A. B. Williams (1926–2016), known as Tony, South African civil engineer
• Tony Williams (criminal), British criminal known as "Lord Williams of Tomintoul"