Family name Rittman (Rittman 
) , around the world, is a rare surname. The family name Rittman is characteristic of the United States, where it is a rare surname, Australia, and Singapore, where it is a very rare surname. In absolute terms, it is commonest in the United States, Australia, and the United Kingdom.
| VARIANT | COUNTRY |
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| Rittman | Netherlands, Canada, Australia, United States, United Kingdom |
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walter frank rittman American chemical engineer (1883-1954) (b. 1883) |
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| john rittman American softball coach (b. 1963) |
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| martyn rittman researcher ORCID ID = 0000-0001-9327-3734 |
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| dylan r rittman researcher |
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| dick rittman college basketball player (1957–1958) Arkansas |
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| robert l. rittman Ph.D. Rutgers University, New Brunswick 2007 |
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| timothy rittman researcher |
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| eleni rittman Swiss association football player, CH |
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