Gilbert is an island in the Philippines under the jurisdiction of Rosario in the province of Northern Samar. The island lies within the Philippine Sea.

Gilbert has an approximate area of 11.85 square kilometers or 4.57 square miles, and roughly has a coastline length of 22.48 kilometers or 13.97 miles. The island is situated at approximately 12.5589, 124.4266. Elevation at these coordinates is estimated at 4 meters or 13.12 feet above mean sea level.


  1. Land area figures and coastline length were calculated from OpenStreetMap data.
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