Cognomen Loiza (Loiza 
, Лоиза 
, Лойза 
) , all around the world, is quite a rare family name. The last name Loiza is characteristic of Guadeloupe, where it is quite a common surname, Argentina, where it is quite a rare surname, and North Macedonia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Latin America and the Caribbean, particularly Argentina, Guadeloupe, and Chile. Very seldom, Loiza is the forename as well as the last name.