•
R. H. Williams (rugby union) (1930–1993), Welsh rugby union player; full name Rhys Haydn Williams •
Rhys Williams (rugby union, born 1979), Welsh rugby union hooker •
Rhys Williams (rugby union, born 1980), Welsh rugby union full-back and wing •
Rhys Williams (hurdler) (born 1984), Welsh athlete •
Reece Williams (born 1985), Australian rugby player •
Reece Williams (cricketer) (born 1988), South African cricketer •
Rhys Williams (rugby union, born 1988), Welsh rugby union centre •
Rhys Williams (soccer, born 1988), Australian professional association football player •
Rhys Williams (rugby league) (born 1989), Welsh rugby league footballer •
Rhys Williams (rugby union, born 1990), Welsh rugby union hooker •
Rhys Williams (soccer, born 1995), American soccer player •
Rhys Williams (footballer, born 2001), English footballer ==Others==