Last name Collman (Collman 
) , around the world, is quite a rare family name. The cognomen Collman is habitual in Jamaica, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and the United States. Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Argentina. Very seldom, Collman is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Collman | United Kingdom, Spain, United States, Argentina, Jamaica |
| james p. collman American inorganic chemist, US (b. 1932) |
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| jeffrey dwayne collman American flight attendant, victim of American Airlines Flight 11 during the September 11 attacks, US (b. 1959) |
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| gwen w. collman American environmental epidemiologist, US |
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| forrest collman researcher |
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| leonard collman British artist (active 18th century) |
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| ronald g collman researcher |
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| forrest collman |
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