In the world, Sertu (Sertu 
, Certo 
) is a rare predominantly male, but very seldom female first name. The first name Sertu is habitual in Indonesia, where it is a very rare male name, Italy, where it is a very rare largely boy's, but uncommonly girly name, and China, where it is an extremely rare feminine name. More frequently, Sertu is the last name as well as the forename.