William Griffiths

William, Will, Bill or Billy Griffiths may refer to:

Sports

 * William Griffiths (boxer) (born 1932), Australian Olympic boxer
 * William Griffiths (field hockey) (1922–2010), British Olympic hockey player
 * Will Griffiths (rugby union) (born 1998), Welsh rugby union player
 * Bill Griffiths (footballer, born 1879) (1879–1928), Australian rules footballer
 * Bill Griffiths (footballer, born 1896) (1896–1970), Australian rules footballer
 * Billy Griffiths (footballer, born 1876), (1876–1946), English footballer

Others

 * William Griffiths (VC) (1841–1879), Irish recipient of the Victoria Cross
 * William Griffiths (politician) (1912–1973), British politician
 * Hugh Griffiths, Baron Griffiths (William Hugh Griffiths, 1923–2015), British soldier, cricketer, judge and life peer
 * William Garonwy Griffiths (born 1955), American author
 * Bill Griffiths (poet) (1948–2007), British poet and scholar
 * Billy Griffiths (writer), Australian historian and writer