Cognomen Rantamaa (Rantamaa 
) , across the world, is a rare surname. The family name Rantamaa is habitual in Finland, where it is quite a rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Rantamaa | Finland, United States, Canada |
| antti johannes rantamaa Finnish politician, pastor, FI (b. 1904) |
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| aleksi rantamaa Finnish journalist, FI |
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| kyösti rantamaa FI |
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