Last name Ottho (Ottho 
) , all around the world, is a very rare cognomen. The family name Ottho is characteristic of Norway, where it is a rare surname, Netherlands, where it is a very rare surname, and Germany. Much less frequently, Ottho is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ottho | Mexico, Norway, Netherlands, Canada, Germany |
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ottho w. lewis politician in Massachusetts, US, US (b. 1853) |
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harald ottho Norwegian actor (b. 1920) |
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| rigmor ottho NO (b. 1923) |
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| ottho vorsterman Noord-Nederlands; schilder; tekenaar; Noord-Nederlands; schilder; tekenaar |
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| ottho von rheden |
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| joachim elias ottho |
|