Family name マグワイア (Maguire 
, Mcgwire 
, マグワイア) , around the world, is a common last name. The cognomen マグワイア is characteristic of Ireland, where it is a common surname, Australia, where it is quite a common surname, and the United Kingdom (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Ireland.