Cognomen Somerto (Somerto 
) , across the world, is a very rare surname. The cognomen Somerto is habitual in Finland, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, Somerto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somerto | United States, Finland, Indonesia |
| kaarlo somerto FI (b. 1895) |
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| kai somerto Finnish diplomat, FI (b. 1925) |
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| pentti somerto FI (b. 1927) |
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