Panmure Island is a small Canadian island located off the east coast of Prince Edward Island in the Lot 61 township in Kings County.
The island is located approximately 1 km from the nearest point on Prince Edward Island. Panmure Island has been historically connected to Prince Edward Island by sand bars at low tide, however since the 1960s, an artificial causeway has been in place, carrying a road to the island.
This causeway also created an extensive barrier beach and sand dune formation, which is now protected by Panmure Island Provincial Park; this park is not actually located on the island but along the causeway. The causeway has been facing increased wave erosion in recent years and the provincial government has expended significant funds to attempt to preserve the connection despite rising sea levels and increased storms.
The island also features an interesting lighthouse near the northern end of the causeway.
The island is home to the community of Panmure Island, which derives its name from the island.