Cognomen דויל (Doyle 
, Doyl , דויל 
) , globally, is a widespread family name. The surname דויל is characteristic of Ireland, where it is a common surname, Saint Vincent and the Grenadines, where it is quite a common surname, and Guernsey (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, Ireland, and the United Kingdom. Very seldom, דויל is the forename as well as the last name.