| Mrčara | |
| Native Name Link: | Croatian language |
| Location: | Adriatic Sea |
| Coordinates: | 42.7689°N 16.7894°W |
| Archipelago: | Lastovo |
| Area Km2: | 1.45 |
| Elevation M: | 123 |
| Country: | Croatia |
| Country Admin Divisions Title: | County |
| Country Admin Divisions: | Dubrovnik-Neretva |
| Population: | Uninhabited |
Mrčara is a small uninhabited island in the Croatian part of the Adriatic Sea, located west of the islands of Prežba and Lastovo in southern Dalmatia. Its highest peak is 123 m above sea level and its coastline is 7.8 km long.[1] A small jetty on the east coast of the island with a small seasonal restaurant services boat traffic.
In July 2011 the island hosted its first paintball game. Clear-shelled and filled paintballs were used so as not to leave any marks on the island's historical fortifications and tunnel complexes.[2]
The island also hosts all weekend and all week Airsoft games as of July 2010.