Family name Mnsi (Mnsi 
) , across the world, is a very rare surname. The last name Mnsi is characteristic of Jordan, where it is a rare surname, South Africa, where it is a very rare surname, and the United States, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Jordan, South Africa, and India. Much less frequently, Mnsi is the forename as well as the last name.