Cognomen Istra Marcela (Istra Marcela 
) , across the world, is an extremely rare last name. The family name Istra Marcela is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Likewise, Istra Marcela is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Istra Marcela | Chile |