Cognomen Koutu (Koutu 
, Коуту 
) , around the world, is a rare family name. The surname Koutu is characteristic of Finland, where it is a rare surname, Afghanistan, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Afghanistan, Finland, and India. Also, Koutu is the forename as well as the last name.