Family name Riismaa (Riismaa 
) , in the entire world, is a rare surname. The family name Riismaa is habitual in Estonia, where it is quite a common surname, and the United States, where it is an extremely rare surname. Much less frequently, Riismaa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riismaa | United States, Indonesia, Estonia |
| tiit riismaa (b. 1949) |
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| kädi riismaa EE (b. 1950) |
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| joonas riismaa Estonian basketball player, EE |
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