Family name מסטיסלב (Mstislav 
, מסטיסלב ) , all over the world, is a very rare cognomen. The family name מסטיסלב is characteristic of Israel, where it is a very rare surname, Georgia, and Spain, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Israel, Spain, and Mexico. More frequently, מסטיסלב is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mstislav | Mexico, Russia, United States, Israel, Australia |
| מסטיסלב | Israel |