Mantidactylus tricinctus is a species of frog in the family Mantellidae.

It is found between 450 and 850 m elevation at three sites in the east and southeast of the island, An'Ala, Befotaka and Vondrozo.

[1] Its natural habitats are subtropical or tropical moist lowland forests, rivers, and swamps.

The species is characterized by a yellow patch on the groin and a white one at the tip of the snout.

[2] Amphibian Species of the World: [1] AmphibiaWeb: [2] Photograph on CalPhotos: [3]