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All around the world, Signa (Signa , Signo ) is a rare dominantly girly, but uncommonly masculine forename. The forename Signa is habitual in Algeria, where it is a rare female name, the United States, where it is a very rare feminine name, and Tanzania. Not in comparison with a country's population, this name is the most popular in the United States, India, and Algeria. More prevalently, Signa is the last name as well as the forename.
Signa is also a name for the fictitious and mythical characters: .