Cognomen Yamsi (Yamsi 
) , all over the world, is a rare surname. The cognomen Yamsi is characteristic of Cameroon, where it is quite a rare surname, Malaysia, where it is a rare surname, and Venezuela, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Cameroon, Malaysia, and India. Much less frequently, Yamsi is the forename as well as the last name.