Family name Grieta (Grieta 
) , in all the world, is a rare cognomen. The last name Grieta is habitual in Philippines, where it is a rare surname, Honduras, where it is a very rare surname, and Peru, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Philippines, South Africa, and Peru. Also, Grieta is the forename as well as the last name.