Family name כהן (Kahan 
, Cohen 
, Cahan , among others...) , all over the world, is a widespread cognomen. The last name כהן is characteristic of Israel, where it is a prevalent surname, Monaco, where it is quite a common surname, and Bermuda (explore the name in all countries). Not in comparison with a country's population, the name is most common in Israel, the United States, and France. Much less frequently, כהן is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kahan | Japan, France, United Kingdom, Israel, United States |
| Kohen, Cohen, Cohn, Cahan | France, Canada, United Kingdom, Israel, United States |
| 科恩 | China |
| Коен | Kyrgyzstan, Russia, Bulgaria, Ukraine, Israel |
| כהן | Israel |
| Коэн | Russia, Kyrgyzstan, Lithuania, Israel |
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טוביה כהן Polish physician, IL (b. 1652) |
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יעקב כהן writer from Israel (1881-1960), IL (b. 1881) |
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משה כהן Russian-born Israeli physician and politician, IL (b. 1888) |
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דוד כהן Zionist activist (1894-1976), IL (b. 1894) |
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בנו כהן Israeli politician (1894-1975), IL (b. 1894) |
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אפרים כהן IL (b. 1885) |
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יעקב שלמה כהן IL (b. 1889) |
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יוסף כהן-צדק Israeli linguist, IL (b. 1904) |
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אהרן חיים כהן Israeli activist, IL (b. 1906) |
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אידוב כהן Israeli politician, IL (b. 1909) |
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אהרן כהן Israeli politician and Arabist (1910-1980), IL (b. 1910) |
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ירדנה כהן Israeli dancer, dance teacher and choreographer, IL (b. 1910) |
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חיים הרמן כהן Israeli judge, DE (b. 1911) |
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יהודה כהן Israeli judge (1914-2009), IL (b. 1914) |
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אלי כהן IL (b. 1905) |
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