Last name Koganas (Koganas 
) , all around the world, is a very rare family name. The family name Koganas is habitual in Lithuania, where it is a rare surname, Brazil, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Koganas | United States, Brazil, Lithuania |
| leonas koganas LT (b. 1894) |
|