Worldwide, Mikolainis (Mikolainis 
) is an extremely rare unknown gender forename. Much more frequently, Mikolainis is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mikolainis | Lithuania, New Zealand, United States, Canada |
| petras mikolainis Lithuanian publisher, LT (b. 1868) |
|