Masam is a small rural town in Pujehun District in the Southern Province of Sierra Leone. The town is the chieftaincy seat of Masam Kpaka Chiefdom. The major industry in the town is farming.

was a Japanese botanist, who worked in Formosa and then, after World War II, Taiwan. He was noted for his comprehensive botanical indexes of Borneo and Taiwan, as well as for the identification of large numbers of new species.