Grensen is a village in Trysil Municipality, in Innlandet, Norway. Grensen lies at 304 m above sea level, 6.5 km from the Scandinavian mountains. The nearest city is Hamar, 87 km to the west. Among the landmarks around are Plassen Church (10.8 km), Höljes Hydroelectric Power Station (11.1 km) and Østby Church (24 km). Among the natural features are Tørkjamak (4.9 km) and Storberget (5.4 km).