Surname Vuorjoki (Vuorjoki 
) , all over the world, is a very rare family name. The cognomen Vuorjoki is habitual in Finland, where it is quite a rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Vuorjoki | Finland, Germany |
| u. j. vuorjoki Finnish translator (1877-1944), FI (b. 1877) |
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| yrjö vuorjoki FI (b. 1899) |
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| elsa vuorjoki FI (b. 1904) |
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| asko vuorjoki Finnish journalist, FI (b. 1937) |
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| anna vuorjoki FI |
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