Across the world, Tammo (Tammo 
, تمو 
, Таммо 
) is quite a rare gender-neutral given name. The given name Tammo is habitual in Sudan, where it is a rare unisex name, Germany, where it is a rare boy's name, and Netherlands. In absolute terms, it is the most numerous in Germany, Sudan, and India. Likewise, Tammo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tammo | Estonia, India, Syria, Germany, Cameroon |
| تمو | Iraq, Egypt, Sudan, Lebanon, Syria |
| Таммо | United States, Russia, Ukraine |
| tammo von verden (b. 1150) |
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| tammo von bocksdorf (b. 1350) |
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tammo adriaan ten berge Dutch jurist (1756-1830), NL (b. 1756) |
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tammo sypkens Dutch politician (1780-1842), NL (b. 1780) |
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| tammo tammerus kroon NL (b. 1841) |
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tammo jacob bezemer Dutch university professor, NL (b. 1905) |
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| tammo sijtse bakker Dutch politician (1861-1893), NL (b. 1861) |
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| tammo egge welt Dutch mayor, NL (b. 1868) |
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| tammo jacob bezemer Dutch university teacher, NL (b. 1869) |
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tammo tom dieck German mathematician, BR (b. 1938) |
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| tammo moulijn Dutch Righteous Among the Nations, NL (b. 1928) |
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| tammo bakker NL (b. 1931) |
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| machaal tammo Kurdish politician (1957-2011), SY (b. 1957) |
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| tammo schuringa (b. 1962) |
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| tammo h. a. bijmolt (b. 1967) |
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