Family name Chillah (Chillah 
) , across the world, is a very rare last name. The surname Chillah is characteristic of Tanzania, where it is a rare surname, Nigeria, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Tanzania, Nigeria, and India. Much less frequently, Chillah is the forename as well as the last name.