How dare you ask such a question of me? :P
My very favorites are
Llewelyn and either
Bronwen or
Mererid. I love a lot more Welsh boy's names than girl's names, and I almost always prefer the Welsh version to an Anglicized one. Here are my most favorite, but there are plenty more I could add!
Tegwared
BrynMareduddIeuanCadwaladerTomosHefinIdrisEmlynGwenithHeulfryn
MyrddinGwilymTalfrynEnfysWmffra
Eifion
OlwenBlodeuweddBethanMairAnnest
SiwanAfanenGlesni
WinnifredGuinevereThis message was edited 4/15/2012, 6:30 AM