Gacko Polje should not be confused with Gatačko Polje.
| Country: | Croatia |
| Region: | Lika-Senj County |
| Range: | Dinaric Alps |
| City: | Otočac |
| River1: | Gacka |
| Elevation M: | 425–481 |
| Area Km2: | 80 |
| Coordinates: | 44.85°N 15.3°W |
| Map: | Croatia |
| Relief: | 1 |
Gacko Polje is a polje (karstic field) in the Lika region of Croatia, the third largest in Croatia, covering an area of 80km2.