- Source: Gwalchmai (disambiguation)
Gwalchmai or Gwalchmei is a figure in Welsh Arthurian legend known in English as Gawain.
Gwalchmai may also refer to:
Gwalchmai, Anglesey, a village in Anglesey, north Wales
Gwalchmai ap Meilyr (12th century), Welsh court poet
C.P.D. Gwalchmai, an association football team from Gwalchmai, Anglesey