Surname Tanttu (Tanttu 
, Тантту) , all around the world, is a rare family name. The family name Tanttu is habitual in Finland, where it is quite a rare surname, Sweden, where it is a rare surname, and Australia, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Finland, Sweden, and the United States. Very seldom, Tanttu is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Tanttu | Australia, Finland, Sweden, United States, India |
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kasperi tanttu FI (b. 1886) |
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erkki tanttu Finnish illustrator and cartoonist (1907-1985), FI (b. 1907) |
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| august tanttu Finnish politician, FI (b. 1859) |
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| antti tanttu Finnish researcher 1884-1962, FI (b. 1884) |
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juha tanttu Finnish journalist, FI (b. 1936) |
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| aatami tanttu Finnish wrestler, FI (b. 1887) |
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| anna-maija tanttu Finnish journalist, FI (b. 1938) |
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| markku tanttu Finnish writer and illustrator, FI (b. 1944) |
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| ville tanttu Finnish film director, cinematographer and film composer, FI (b. 1967) |
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| tuomo tanttu researcher |
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Mr, Elli, Ella, Eino, Eero, Vesa, Olli, Ulla, Marko, Marjo, Matti, Maija, Minna, Antti, Bevan, Brett, Katja, Kimmo, Petri, Pekka, Pirjo, Duane, Niko, Nico, Nana, Timo, Ms, Sak, Ari, Esa, Mika, Simo, Alli, Anne, Anja, Amos, Laura, Riku, Jani, Jari, Joni, Jopi, Jeri, Juha, Juho, Toni, Topi, Tero, Dora, and Leena