Coat of Arms of the Corn Islands

The Municipal Seal, or Coat of Arms, comprises a rudder representing Great Corn Island and Little Corn Island's primary economic activity – fishing. The inscription reads CORN ISLAND, NICARAGUA – RACCS, with RACCS being the Spanish acronym for the South Caribbean Coast Autonomous Region, the Nicaraguan territory where the islands are located.

On the rudder, moving from left to right, two palm trees symbolize Great Corn Island and Little Corn Island. Inside the rudder, there are four sections; the first two signify fishing (with the fishing boat on the left) and the islands' flora (with the two palm trees and grass on the right). The last two at the bottom represent the marine fauna of the islands.

The Municipal Seal predates the islands' flag, having been created in 2005 by Jostin Goyo and approved by the Municipal Council that same year.