Cognomen Parmasto (Parmasto 
) , in all the world, is a very rare last name. The surname Parmasto is characteristic of Estonia, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Parmasto | United States, Estonia |
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erast parmasto Estonian scientist (1928-2012), EE (b. 1928) |
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| ilmi parmasto Estonian mycologist, EE (b. 1935) |
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| anne parmasto (b. 1952) |
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| anne parmasto (b. 1952) |
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