Gwen is a Welsh feminine given name meaning "white, holy". It can be a shortened form of Gwenhwÿfar (Guinevere) or other names beginning with the same element, such as:
- Gwenaëlle (modern feminine form of Breton Gwenaël)
- Gwenda (explained as a compound of gwen "white, pure, blessed, holy" + da "good, well")
- Gwenddolen
- Gweneira (from gwen "white" + eira "snow")
- Gwenfair (combination of gwen "blessed, holy" + -fair, soft mutation of Mair "(the Virgin) Mary")
- Gwenffrewi (Breton: Gwenvred)
- Gwenfron (from gwen "white" + fron, mutated form of bron "breast"; cf. Bronwen)
- Gwenith (identical to the Welsh word for "wheat")
- Gwenllian
- Gwennant (compound of gwen "white" + nant "stream, brook")
- Gwenola (modern feminized form of Breton Gwenole)