Last name والو (Walu 
, Walou 
, والو 
) , throughout the world, is quite a rare cognomen. The cognomen والو is characteristic of Northern Africa, particularly Algeria, where it is quite a rare surname, Morocco, where it is a rare surname, and Tunisia. Measured by absolute frequency, it most frequently occurs in Algeria, Nigeria, and Indonesia. Likewise, والو is the forename as well as the last name.