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All around the world, Rocko (Rocko , Roquette , Rocken ) is a rare dominantly masculine, but uncommonly girly first name. The forename Rocko is characteristic of South Africa, where it is a very rare boy's name, Australia, and Colombia. In absolute terms, the name is most common in the United States, South Africa, and Mexico. More prevalently, Rocko is the last name as well as the forename.
Rocko is also a name for the fictitious and mythical characters: Rocko , the eponymous fictional character of the cartoon Rocko's Modern Life.