Cognomen אגאסי (Agassiz 
, אגאסי 
) , in the world, is a rare last name. The last name אגאסי is habitual in Switzerland, where it is a rare surname, Canada, where it is a very rare surname, and Israel. Not in comparison with a country's population, it is the most numerous in Switzerland, Canada, and China. Very seldom, אגאסי is the forename as well as the last name.