Across the world, Kastina (Kastina 
) is a rare epicene first name. The first name Kastina is characteristic of Indonesia, where it is a rare girly name, Nigeria, where it is a very rare largely masculine, but uncommonly female name, and the United States, where it is an extremely rare largely feminine, but seldom masculine name. In absolute terms, it most frequently occurs in Indonesia, Nigeria, and India. Also, Kastina is the last name as well as the forename.