Surname Marylu (Marylu 
) , in all the world, is quite a rare last name. The family name Marylu is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is quite a rare surname, Mexico, where it is a rare surname, and Honduras. Measured by absolute frequency, it is commonest in Latin America and the Caribbean, particularly Mexico, Venezuela, and Nicaragua. More frequently, Marylu is the forename as well as the last name.