Gruffin Gruffin Baby Names Welsh Gruffin Boy 7 letters Pronounce Welsh Fierce lord. Gruffin is a boy’s name of Welsh origin. Meaning in Welsh: Fierce lord. The name has 7 letters. Related names Grigor Boy Greek Russian Welsh Vigilant. On the watch. Groffudd Boy Welsh Strong warrior, lord. Gruddyeu Boy Welsh Legendary son of Muryel. Gruffen Boy Welsh Fierce lord. Gruffudd Boy Welsh Red haired. Gruffyn Boy Welsh Fierce lord. Grufydd Boy Welsh Red haired. Gryphin Boy Welsh Strong in faith. Previous Gruffen Next Gruffudd