Cognomen Hadamar (Hadamar 
) , around the world, is a rare family name. The cognomen Hadamar is habitual in France, where it is a rare surname, Canada, where it is an extremely rare surname, and Mexico. Not in comparison with a country's population, it most frequently occurs in France, India, and Mexico. Very seldom, Hadamar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hadamar | India, Canada, France, Mexico |
| hadamar von laber German poet, DE (b. 1300) |
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| mansuet versbach von hadamar general officer, AT (b. 1845) |
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| jutta von hadamar - Bef 18 Feb 1402 |
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| johann von hadamar |
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