In all the world, Oloff (Oloff 
) is a rare predominantly masculine, but very seldom feminine forename. The first name Oloff is habitual in Sub-Saharan Africa, particularly South Africa, where it is a rare predominantly male, but very infrequently female name. Also, Oloff is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Oloff | Canada, United States, South Africa, Germany, Chile |
| oloff stevensz van cortlant 1610-1684 , merchant and public official (b. 1610) |
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| oloff person (b. 1614) |
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| oloff nicolaas degerman Dutch scientific instrument maker, NL (b. 1730) |
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| oloff johannes truter civil servant, diplomat, ZA (b. 1829) |
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| oloff hennig South African businessman, ZA |
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