Tamuning, also known as Tamuning-Tumon-Harmon, is a village situated on the western shore of Guam, a territory of the United States. It serves as the primary economic center of the island, housing several major commercial and industrial zones.
The village contains the tourist center of Tumon and the Harmon Industrial Park. Its development has been significantly influenced by its central location along Marine Corps Drive, which functions as the main thoroughfare of the island.