McWilliam Coat of Arms and Surname Origin

Arms linked to Williamson and its spellings were granted to individual families; our heraldry team traces which line they belonged to.

Meaning of the name

Seen on a birth certificate or a ship's manifest, McWilliam is usually a form of Williamson. Surname dictionaries give the meaning as “Son of William”.

Spelling and variants

McWilliam is listed among the recognised spellings of Williamson. Related forms: Williamsone and Wilson.

Want more than a summary? See the McWilliam family name pack.