Last name Thouch (Thouch 
) , all over the world, is a very rare cognomen. The cognomen Thouch is characteristic of Israel, where it is a very rare surname, France, where it is an extremely rare surname, and Canada. Measured by absolute frequency, it is the most numerous in the United States, France, and Israel. Very seldom, Thouch is the forename as well as the last name.