All over the world, Ratt (Rath 
, Ratti 
, Rat ) is a common epicene first name. The forename Ratt is characteristic of Aland Islands, where it is quite a common male name, India, where it is quite a rare unisex name, and Italy, where it is a rare epicene name. Not in comparison with a country's population, the name is most common in India, Bangladesh, and Indonesia. More frequently, Ratt is the last name as well as the forename.
Ratt is also a popular name for the fictitious and mythical characters: Rat King , the fictional Teenage Mutant Ninja Turtles character; Rat King , the fictional character in the 1987–1996 Teenage Mutant Ninja Turtles animated television series, Return of the Fly; Rat King , the fictional Teenage Mutant Ninja Turtles Adventures character, White Light; Rat King , the fictional character in the 1989–1993 Teenage Mutant Ninja Turtles video game series, Teenage Mutant Ninja Turtles IV: Turtles in Time and Rat Fink , the fictional character created by Ed Roth, and in many other works.