Puerto Lempira is a town in northeastern Honduras. It lies on an islet that forms part of Tansin Island, facing the main passage into the Caratasca Lagoon. Fishing is the major economic activity of the area, and the town has a shrimp-packing plant.
The shallow, swampy nature of the lagoon and the dense jungle vegetation of the hinterland have precluded the development of a port. An airfield provides the principal communications link with the rest of Honduras; the town has no highway. Pop. (2001) 4,102.