Cognomen Leppo (Leppo 
, Lippus 
) , all around the world, is quite a rare last name. The cognomen Leppo is characteristic of Estonia, where it is quite a rare surname, Finland, where it is a rare surname, and the United States. Not in comparison with a country's population, it is commonest in the United States, Estonia, and Italy. Much less frequently, Leppo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leppo | China, Italy, Estonia, Finland, United States |
| Lippus | Germany, Estonia, United States, France, Netherlands |
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jaakko leppo Finnish journalist, FI (b. 1902) |
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heikki leppo Finnish diplomat (1906-1987), FI (b. 1906) |
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| matti leppo Finnish economist (1908-1998), FI (b. 1908) |
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| markus leppo Finnish photographer, FI (b. 1934) |
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| erik w leppo researcher |
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| leppo tau |
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