Cognomen 巴伊 (Bailly 
, 巴伊) , around the globe, is a common family name. The cognomen 巴伊 is habitual in Jersey, where it is quite a common surname, France, and Reunion (explore the name in all countries). Measured by absolute frequency, the name is most common in France, Ivory Coast, and Belgium. Much less frequently, 巴伊 is the forename as well as the last name.