Cognomen Martinz (Martinz 
) , around the world, is quite a rare family name. The family name Martinz is characteristic of El Salvador, where it is quite a rare surname, Austria, and Panama. Measured by absolute frequency, it is the most numerous in El Salvador, Austria, and Guatemala. Very seldom, Martinz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Martinz | Guatemala, Brazil, Austria, El Salvador, Argentina |
| martinz de aguiar BR (b. 1893) |
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josef martinz Austrian politician, AT (b. 1959) |
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| fritz martinz Austrian painter (1924-2002), AT (b. 1924) |
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| christof martinz Austrian ice hockey player, AT (b. 1989) |
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