Boy name origins & meanings Irish : Determined guardianTeutonic : Valiant protector Boy name variations Uilliam William Wil Will Willem Wilhelm Wilmos Wilmot Wilson Williams Williamson Wills Willie Willy Wiley Wyley Wilkie Willkie Wilkes Wylkes Willis Wilton Wilmer Wilmar Winton Willard Wilford Guillaume Guillermo Vilhelm Vilem Viliam Vasili Vasily
