Last name Адеркас (Адеркас 
) , worldwide, is a very rare cognomen. The surname Адеркас is characteristic of Eastern Europe, particularly Ukraine, where it is a very rare surname, and Russia, where it is an extremely rare surname. Very seldom, Адеркас is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Адеркас | Ukraine, Russia |
| андрей антонович адеркас EE (b. 1770) |
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| эммануил богданович адеркас EE (b. 1773) |
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оттокар карлович адеркас EE (b. 1859) |
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| фабиан адеркас Latvian military personnel, LV |
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