Last name Yann-Gael (Yann-Gael 
) , across the world, is an extremely rare surname. The last name Yann-Gael is characteristic of Southern Europe, particularly Spain, where it is an extremely rare surname. Much more frequently, Yann-Gael is the forename as well as the last name. Parts of the name also exists independently as a first name Yann, and a first name Gael.