Surname מגווייר (Maguire 
, מגווייר 
) , in the entire world, is a common last name. The cognomen מגווייר is habitual in 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). Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and Ireland.