Richard Williams may refer to:
Entertainment
Richard Williams (animator) (1933–2019), Canadian-British animator
Richard Williams (theatre director), theatre director, producer and teacher
Treat Williams (1951–2023), American actor and children's author
Dick Anthony Williams (1934–2012), American actor
Richard Bebb (Richard Bebb Williams, 1927–2006), English actor
Military
Richard Williams (Royal Marines officer) (1764–1839), British military officer
Richard Williams (RAAF officer) (1890–1980), Australian aviator
Music
Richard Williams (conductor) (1923–2007), Welsh conductor
Richard Williams (musician) (1931–1985), American jazz trumpeter
Richard Williams, drummer for the Passions
Dick Williams (singer) (1926–2018), American singer
Rich Williams (born 1950), sometimes credited as Richard Williams, American guitarist for Kansas
Politics
Richard Williams (alias Cromwell) (c. 1510–1544), Welsh soldier and courtier
Richard Williams (congressman) (1836–1914), American politician from Oregon
Richard Williams (died 1579) (before 1535–1579), English politician for Oxford
Richard Williams (died 1601) (before 1560–1601), MP for New Romney
Richard Williams (died 1692) (c. 1654–1692), MP for Radnorshire, for Breconshire and for New Radnor Boroughs
Richard Williams (MP for Flint) (c. 1699–1759), Welsh politician for Flint
Richard Williams (of Rhosygeido) (before 1570–1622), Welsh politician from Anglesey
Richard G. Williams (1830–1906), American politician from Ohio
Richard H. Williams (New York politician) (1807–?), American politician from New York
Richard Henry Williams (1852–1924), Canadian lumber merchant and political figure in Saskatchewan
Richard S. Williams (before 1820–after 1853), American politician from New York
Sports
Baseball
Dick Williams (1929–2011), American baseball player and manager
Dick Williams (executive), American baseball executive
Rick Williams (baseball, born 1952), American baseball pitcher (Houston Astros, 1978–79)
Rick Williams (baseball, born 1956), American baseball coach and scout
Basketball
Richard Williams (basketball coach), American basketball coach at Mississippi State University from 1986 to 1998
Richie Williams (basketball) (born 1987), American basketball player
Cricket
Richard Williams (cricketer, born 1901) (1901–1982), English, played for Worcestershire
Richard Williams (cricketer, born 1957), Welsh-born, played for Northamptonshire
Reggie Williams (cricketer) (Richard Charles James Williams, born 1969), English, played for Gloucestershire
Football
Richard Williams (American football) (born 1960), American running back for Atlanta Falcons and Houston Oilers
Richard Williams (Australian rules footballer) (1905–1958)
Richard Williams (English footballer) (1869–after 1895), English, played for Everton and Luton Town
Richard L. Williams (soccer), Canadian soccer player
Richard Parry Williams (1863–?), Welsh international footballer
Dick Williams (footballer) (1905–1983), English footballer
Richie Williams (born 1970), American soccer coach and former player
Richie Williams (Canadian football) (born 1983), American quarterback who played in Canada
Rugby
Richard Williams (rugby league) (born 1986), Australian rugby league footballer
Richard Garnons Williams (1856–1915), Welsh rugby union player
Dickie Williams (1925–1997), Welsh rugby union and rugby league footballer
Tennis
Richard Williams (tennis coach) (born 1942), American coach and father of Venus and Serena Williams
R. Norris Williams (1891–1968), American player and RMS Titanic survivor
Other sports
Richard Williams (boxer) (born 1971), English boxer
Richard Williams (racing driver) (born 1977), English racing driver