NSB El 15 is a class of electric locomotives which are now operated by the Norwegian company Grenland Rail.

The main task there is to pull heavy iron ore freight trains, and the El 15 is the most powerful engine which NSB has ever used.

But unlike Statens Järnvägar, NSB chose to instead buy a newer technology locomotive from ASEA, based on the Romanian CFR 060 EA.

In 1996 the operation of the ore trains was taken over by Malmtrafik, owned by NSB, SJ and LKAB, the owner of the mines.

The new company ordered 18 new IORE locomotives from Bombardier and in 2004 the ageing engines were sold to Hector Rail.