Welsh female names originate in the Welsh language (Cymraeg) and often combine native elements. A key feminine marker is the ending -wen, the feminine form of gwyn “white, fair,” seen in names like Arianwen, Anwen, and Alwen; the masculine counterpart is -wyn. Welsh orthography is distinctive in given names, with letters such as dd, rh, and the vowels w and y. Traditional female forms like Angharad and Alys follow the same compound-building patterns as male names, with gender shown mainly through endings and mutation.

Today, usage in Wales favors traditional and revived forms, alongside some anglicized variants. Examples include Angharad, Alys, Anwen, Arianwen, Arianrhod, Aranrhod, Aeronwen, Aelwen, Awen, and Betrys.