Last name Gâteaux (Gâteaux 
, Гато 
) , throughout the world, is a rare cognomen. The surname Gâteaux is characteristic of Algeria, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Morocco, where it is a very rare surname. In absolute terms, the name is most common in Algeria, Morocco, and France. Also, Gâteaux is the forename as well as the last name.