Mabaruma is a city located in Guyana that serves as the administrative centre and regional capital for Region One, also known as Barima-Waini. It is situated on a narrow plateau positioned above the surrounding rainforest at an elevation of 13 metres.
The settlement is located close to the Aruka River. As the primary administrative hub for its region, it functions as a key point of governance and local administration within this area of Guyana.