Cognomen Colwin (Colwin 
) , all around the world, is a very rare last name. The cognomen Colwin is characteristic of the United States, where it is a very rare surname, Nicaragua, and Germany. In absolute terms, the name is most common in the United States, Germany, and Canada. Also, Colwin is the forename as well as the last name.
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| Colwin | Germany, South Africa, Philippines, United States, India |
| laura hunter colwin Biologist who studied the process of fertilization in animals,Trustee emerita of the Marine Biological Laboratory, US (b. 1911) |
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| laurie colwin American novelist, short story writer, food writer, US (b. 1944) |
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| arthur lentz colwin Biologist who studied the process of fertilization in animals, AU |
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