| Rosario Bank Placer El Rosario | |
| Coordinates: | 18°30'00.0"N 84°04'00.0"W |
| Subdivision Type: | Sea |
| Subdivision Name: | Caribbean |
| Subdivision Type1: | Country |
| Subdivision Type2: | Minimum depth |
| Subdivision Name2: | 18 m |
| Subdivision Type4: | Geology |
| Subdivision Name4: | Cayman Ridge |
| Subdivision Type5: | Special clause |
| Subdivision Name5: | Annex B, commercial fishing for domestic trade Cayman Islands (authorized: Lutjanus campechanus and Epinephelus lanceolatus; prohibited: crustaceans and Mollusca), annual fishing quota 25 MT, fishing vessels ≤100 ft, under established regulations. |
| Unit Pref: | Metric |
Rosario Bank is a submerged former atoll in the southern Caribbean Sea, located less than 20 km south of Misteriosa Bank. It lies within Honduras's exclusive economic zone.
Rosario Bank is roughly rectangular in extent, being 16 kilometers long east-west, and eight kilometers wide. It has depths of 18 to 64 meters.[1] The distance to the Honduran mainland at Punta Patuca in the south is 290 km, and to Banco Chinchorro off the Belize mainland in the west is about 330 km. The nearest dry land is on the Swan Islands, 112 km to the south.
It is part of a cluster of seamounts of the Cayman mountain range contained in Honduras (Misteriosa, Rosario, Maud, Albion and Viciosas).