Cognomen Ostapova (Ostapova 
) , globally, is a very rare surname. The cognomen Ostapova is characteristic of Belarus, where it is a very rare surname, Georgia, and Poland. In absolute terms, it most frequently occurs in Eastern Europe, particularly Russia, Poland, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Ostapova | Poland, Belarus, United States, Germany, Russia |