Gwilliam

Gwilliam or Gwilym or Gwilliams may refer to:


 * Gwilliam (surname)
 * Brad Gwilliam (born 1966), Australian rules footballer
 * Dianna Gwilliams (born 1957), educator
 * Edward Gwilliam, English footballer
 * George Gwilliam, English Aramaicist
 * John Gwilliam (1923–2016), Welsh rugby union player and schoolteacher
 * Gwilliam (given name)
 * Gwilym Iwan Jones (1904–1995), Welsh photographer and anthropologist
 * Gwilliam v West Hertfordshire Hospital NHS, English tort law case concerning occupiers' liability