Last name Ruith (Ruith 
) , all over the world, is a very rare cognomen. The family name Ruith is habitual in Nigeria, where it is an extremely rare surname, the United Kingdom, and the United States. Likewise, Ruith is the forename as well as the last name.
| horace van ruith British painter (1839-1923) (b. 1839) |
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| maximilian ruith (b. 1836) |
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| adolf ruith German officer, DE (b. 1872) |
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