Surname Jaaksoo (Jaaksoo 
) , around the world, is a rare family name. The cognomen Jaaksoo is characteristic of Northern Europe, particularly Estonia, where it is quite a common surname.
| VARIANT | COUNTRY |
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| Jaaksoo | Estonia |
| ülo jaaksoo Estonian computer scientist, EE (b. 1939) |
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| tiina jaaksoo EE (b. 1931) |
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| tiina jaaksoo (b. 1939) |
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| andres jaaksoo EE (b. 1945) |
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| tarvo jaaksoo EE (b. 1967) |
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