About the Mulloy Surname

The spelling Mulloy grew out of Molloy, an Irish surname with a long paper trail. The family name meaning is “Descendant of the noble leader”, the same as for Molloy.

• Mulloy writes “u” in place of the “o” found in Molloy, a common scribal difference.
• Other spellings include O'Molloy and Maloy.

Mulloy coat of arms

Arms linked to Molloy and its spellings were granted to individual families; our heraldry team traces which line they belonged to. For the full story, order the Mulloy surname pack.