Cognomen Lõo (Lõo 
) , all over the world, is an extremely rare family name. The last name Lõo is characteristic of Northern Europe, particularly Estonia, where it is a rare surname.
| jaan lõo Estonian politician (1872-1939), EE (b. 1872) |
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| andres lõo EE (b. 1978) |
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| marcus lõo badminton player, EE (b. 1999) |
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