Last name Лоиза (Loiza 
, Лоиза 
) , around the world, is quite a rare cognomen. The cognomen Лоиза 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, the name is most common in Latin America and the Caribbean, particularly Argentina, Guadeloupe, and Chile. Much less frequently, Лоиза is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Loiza | Philippines, Guadeloupe, Argentina, Brazil, Chile |
| Лоиза | Kazakhstan, Russia, Bulgaria, Kyrgyzstan |