Cognomen Гилли (Gilli 
, Gilley 
, Гилли 
) , throughout the world, is a common last name. The last name Гилли is habitual in Jersey, where it is quite a common surname, Guernsey, and Switzerland, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Italy, and France. Very seldom, Гилли is the forename as well as the last name.