Cognomen גייה (Guillet 
, גייה 
) , in the entire world, is a common surname. The family name גייה is characteristic of France, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Canada. Measured by absolute frequency, the name is most common in France, the United States, and Switzerland. Much less frequently, גייה is the forename as well as the last name.