Cognomen 吉勒特 (Gillette 
, Gillett , 吉勒特) , all over the world, is a common surname. The surname 吉勒特 is characteristic of Belize, where it is a common surname, Australia, where it is quite a rare surname, and Jamaica. Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Australia. Very seldom, 吉勒特 is the forename as well as the last name.