Association football •
Mattha Smith (1897–1953), Scottish footballer •
Matt Smith (soccer, born 1982), English-born Australian professional soccer defender •
Matt Smith (footballer, born 1989), English professional football striker •
Matty Smith (footballer, born 1997), Scottish footballer with Dundee United •
Matthew Smith (footballer, born 1999), Wales international football midfielder •
Matt Smith (footballer, born 2000), English professional football midfielder
Rugby •
Matt Smith (rugby union, born 1985), rugby union player with Leicester Tigers •
Matty Smith (rugby league) (born 1987), English rugby league player for Wigan Warriors •
Matt Smith (rugby union, born 1989), rugby union player with Cornish Pirates •
Matt Smith (rugby union, born 1996), rugby union player with Glasgow Warriors
Other sports •
Matt Smith (broadcaster) (born 1967), BT Sport presenter •
Matthew Smith (field hockey) (born 1973), Australian field hockey player •
Matthew Smith (rower) (born 1977), American rower •
Matt Smith (baseball) (born 1979), American baseball pitcher •
Matthew Smith (cricketer) (born 1990), English cricketer •
Matt Smith (duathlete) (born 1996), Australian duathlete •
Matt Smith (American football) (born 1965), American football linebacker •
Matthew Smith (cross-country skier) (born 1990), a South African cross-country skier ==Other people==