Cognomen Rajamaa (Rajamaa 
) , around the world, is a very rare surname. The last name Rajamaa is characteristic of Finland, where it is a rare surname, Germany, where it is a very rare surname, and India, where it is an extremely rare surname. More prevalently, Rajamaa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rajamaa | Germany, India, Finland |
| herman rajamaa Estonian pedagogue, EE (b. 1902) |
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| janne rajamaa (b. 1893) |
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| helmi rajamaa (b. 1909) |
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riku rajamaa Finnish musician, FI (b. 1975) |
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| lassi rajamaa Sibelius Academy's headmaster emeritus (b. 1944) |
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| johanna rajamaa Finnish director and dramaturge, FI |
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| ylermi rajamaa Finnish actor, FI |
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