Around the world, Sirian (Sirian 
) is a rare epicene first name. The first name Sirian is habitual in Costa Rica, where it is a rare gender-neutral name, Tanzania, where it is a very rare girly name, and India, where it is a very rare unisex name. Not in comparison with a country's population, it is the most numerous in India, Tanzania, and Brazil. Also, Sirian is the last name as well as the forename.