Family name Kattu (Gato 
, Kattu 
) , all around the world, is a common cognomen. The cognomen Kattu is habitual in Portugal, where it is quite a common surname, Philippines, where it is quite a rare surname, and El Salvador. Not in comparison with a country's population, it is the most numerous in Brazil, Philippines, and India. Likewise, Kattu is the forename as well as the last name.