Last name Martiartu (Martiartu 
) , globally, is a rare surname. The last name Martiartu is characteristic of Spain, where it is a rare surname, Canada, where it is an extremely rare surname, and the United States. Much less frequently, Martiartu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Martiartu | Brazil, United States, Spain, Canada |
|
haizea martiartu ES (b. 1991) |
|
| diego martiartu Basque writer, ES (b. 1968) |
|