Last name Ritman (Ritman 
, Ритман 
) , around the world, is a rare surname. The cognomen Ritman is characteristic of Netherlands, where it is a rare surname, Nicaragua, and Israel. Not in comparison with a country's population, it most frequently occurs in Netherlands, the United States, and Indonesia. Much less frequently, Ritman is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ritman | Netherlands, Indonesia, United States, Nicaragua, Israel |
| Ритман | Ukraine, Russia |
| louis ritman American artist, US (b. 1889) |
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joost ritman Dutch businessman, NL (b. 1941) |
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| willem ritman NL (b. 1907) |
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| william ritman US (b. 1930) |
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| joost ritman NL (b. 1941) |
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| j. ritman researcher |
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| c. ritman |
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| jon ritman British video game designer |
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