Ørje is the administrative centre of Marker municipality, Norway, not far from the Swedish border. Its population (2008) is 1,763.
Ørje is known for its canal museum and steamboat club. Engebret Soot made the first Norwegian canal locks at Ørje in about 1857-1860 (no:Ørje sluser). The total lift of the locks are 10 meters (30 feet) divided on 3 steps. The locks are situated between the lakes "Rødenessjøen" and "Øymarksjøen" as a part of the Halden Waterway System.