In the world, Марю (Marju 
, Марю 
) is a rare unisex given name. The first name Марю is habitual in Estonia, where it is quite a rare girly name, Bulgaria, where it is a rare boy's name, and Finland, where it is a rare feminine name. Not in comparison with a country's population, it is commonest in the Democratic Republic of the Congo, India, and Indonesia. Very seldom, Марю is the last name as well as the forename.