Svartelva () is a river in Innlandet county, Norway. The long river flows from the lake Gjetholsmjøen on the border of Løten Municipality and Stange Municipality at Byenga and it heads to the northwest. The river passes very close to the lake Rokosjøen in Løten Municipality before turning westerly towards àdalsbruk. At the village of Ilseng, it is joined by a tributary, the river LagerÃÂ¥a. From the point where the LagerÃÂ¥a joins, the river forms the border between Stange Municipality and Hamar Municipality, continuing until the outlet at àkersvika into the large lake Mjøsa. The river is about wide, but it is fairly shallow.