Last name Čižiūnas (Čižiūnas 
) , in the world, is a very rare family name. The cognomen Čižiūnas is habitual in Northern Europe, particularly Lithuania, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Čižiūnas | Lithuania |
| vaclovas čižiūnas (b. 1900) |
|