Surname タフ (Tough 
, Tuff 
, タフ 
) , in the world, is quite a rare cognomen. The last name タフ is characteristic of Guernsey, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Canada. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Canada. Very seldom, タフ is the forename as well as the last name.