Syzygium rubrocarpum, a new species from Sulawesi, is described and illustrated here. This novel species is recognized by its narrowly elliptic or oblong-elliptic to subfalcate leaf shape with 13‒15 lateral veins, cauliflorous cymes on main stem, pink-colored flowers, and red-colored globose berries. Currently, S. rubrocarpum is known to occur in two locations in Southeast Sulawesi (Kendari and Kolaka) and is locally referred to as ruruhi.