Worldwide, Tattis (Tack 
, Tattis 
) is a rare mostly male, but infrequently feminine first name. The first name Tattis is habitual in the Democratic Republic of the Congo, where it is a rare male name, Colombia, where it is a rare girly name, and the United States, where it is an extremely rare mostly masculine, but seldom feminine name. More frequently, Tattis is the last name as well as the forename.