Memecylon travancorense Sivu, N. S. Pradeep, Pandur. & Ratheesh, a new species of Memecylon from Agastyamala Biosphere Reserve of the southern Western Ghats is described herewith illustration and photographs. Its distinctive characters are discussed and comments made on differences between this and its allied taxa. This new species is similar to M. wightii, but clearly distinct by having sub-terete, greyish white branchlets, broadly elliptic to oblong leaves with slightly cordate to rounded leaf base, umbellate inflorescence with quadrangular peduncles and shortly pedicellate flowers. Information on habitat, distribution, and conservation status are provided.