I need a welsh boys name for DS3. My DH is welsh but never suggests anything. I'm English.
I want something shortish and that can be easily read by non welshies.
Are Cai & Ellis options or not really Welsh names ? 
I quite like Euan / Ewan but is the welsh version Iuan ? As sure that would be said differently in welsh and in England ( where we live I guess it would end up as Ian)
In the family there is already Bryn, Gareth, Huw, Dylan, Rhys, Ianto