Pollen morphology of 19 species of Madhuca Buch.-Ham. ex J.F. Gmelin of Malaysia was examined using both light and scanning electron microscopes. The pollen grains are single, radially symmetrical, isopolar, mostly subprolate, rarely prolate-spheroidal and spheroidal and generally 4-colporate. The largest pollen belongs to M. curtisii and M. motleyana and M. khoonmengii and M. calcicola have the smallest. On the basis of pollen surface ornamentation four main types have been recognized namely, granular, anastomosed granular, rugulate and perforate which have taxonomic significance in species grouping. Within the genus pollen diversity is valuable for both identification and delimiting of species.