Cognomen Tsutsu (筒 
, Tsutsu 
, Цуцу 
) , in all the world, is quite a rare surname. The surname Tsutsu is characteristic of South Africa, where it is a rare surname, Kenya, and Bulgaria. Not in comparison with a country's population, it most frequently occurs in China, South Africa, and Kenya. Also, Tsutsu is the forename as well as the last name.