Llewellyn

Llewellyn is a common patriotic first name in Wales, with its distinctive Welsh double LL's; in the U.S. Llewellyn would make a daring choice, though with the chance that some might find the ellen sound slightly feminine.

Two princes who played a great role in the medieval Welsh quest for independence were Llewelyn Fawr (Llewelyn the Great) and Llywelyn yr Olaf (Llywelyn the Last).

Llewelyn Moss is a major character in Cormac McCarthy's No Country for Old Men, played on screen by Josh Brolin.

Llewellyn, which can be spelled in a number of ways, has some appealing, if quirky, short forms as well--Llew, Lleu and Llelo.