Surname Leknius (Leknius 
) , around the world, is a very rare family name. The family name Leknius is habitual in Lithuania, where it is a rare surname, Norway, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Leknius | Lithuania, Norway, United States |
| mantas leknius Lithuanian rower, LT (b. 1988) |
|