In all the world, Marsu (Marsu 
, Março 
, Marsvin) is a rare unisex given name. The forename Marsu is habitual in France, where it is a very rare mostly boy's, but uncommonly girly name, Indonesia, where it is a very rare male name, and India, where it is a very rare gender-neutral name. Also, Marsu is the last name as well as the forename.