The 2018 Norwegian Football Cup was the 113th edition of the Norwegian annual knock-out football tournament. It began with qualification matches in March and April 2018. The first round was played from 17–19 April 2018 and the tournament concluded with the final on 2 December 2018.

Rosenborg Ballklub, commonly referred to simply as Rosenborg or RBK, is a Norwegian professional football club from Trondheim that plays in Eliteserien. The club has won a record 26 league titles, a shared record 12 Norwegian Football Cup titles and have played more UEFA matches than any other Norwegian team. RBK play their home games at the all-seater Lerkendal Stadion which has a capacity of 21,421.