Lošinj Open
| Lošinj Open | |
|---|---|
| 2021 Lošinj Open | |
| ATP Challenger Tour | |
| Event name | Lošinj Open |
| Location | Veli Lošinj, Croatia |
| Venue | Ljubicic Tennis Academy |
| Category | ATP Challenger Tour |
| Surface | Clay |
| Draw | 32S/32Q/16D |
The Lošinj Open is a professional tennis tournament played on outdoor clay courts. It is currently part of the ATP Challenger Tour. It is held annually in Lošinj, Croatia since 2021.