Arianwen \a-rian-wen, ari(a)-nwen\ as a girl's name is of Welsh origin, and the meaning of Arianwen is "white, holy silver". Name of one of the daughters of Brychan, a semi-legendary Welsh chieftain (fifth century).

Arianwen has 1 variant form: Arianwyn.

For more information, see also the related name Aledwen.

Baby names that sound like Arianwen are Aeronwen and Arnina.