Worldwide, Hasier (Hasier 
) is a very rare principally masculine, but scarcely feminine given name. The first name Hasier is habitual in Southern Europe, particularly Spain, where it is a very rare masculine name. Likewise, Hasier is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Hasier | New Zealand, United States, Spain, Indonesia, Germany |
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hasier arraiz Basque politician and ex-president of Sortu, ES (b. 1973) |
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hasier larretxea Basque writer, ES (b. 1982) |
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| hasier oleaga Spanish musician, ES (b. 1979) |
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