William Griffiths
William, Will, Bill or Billy Griffiths may refer to:
Sports
- William Griffiths , Australian Olympic boxer
- William Griffiths , British Olympic hockey player
- Will Griffiths , Welsh rugby union player
- Bill Griffiths , Australian rules footballer
- Bill Griffiths , Australian rules footballer
- Billy Griffiths,, English footballer
Others
- William Griffiths , Irish recipient of the Victoria Cross
- William Griffiths , British politician
- Hugh Griffiths, Baron Griffiths, British soldier, cricketer, judge and life peer
- William Garonwy Griffiths, American author
- Bill Griffiths , British poet and scholar
- Billy Griffiths, Australian historian and writer