Cognomen Єфім-Васілій (Єфім-Васілій 
) , in all the world, is an extremely rare family name. Much more frequently, Єфім-Васілій is the forename as well as the last name. Parts of the name also exists independently as a first name Єфім, and a first name Васілій.
| VARIANT | COUNTRY |
|---|---|
| Єфім-Васілій | Ukraine |