Globally, Casten (Kasta 
, Cast 
, Casten 
) is quite a rare unisex first name. The given name Casten is habitual in Tanzania, where it is a rare epicene name, Sweden, where it is a rare male name, and Indonesia, where it is a rare mostly male, but uncommonly female name. In absolute terms, it is the most numerous in India, Indonesia, and Tanzania. More prevalently, Casten is the last name as well as the forename.