Idrottsforeningen Kamraterna Norrkoping, more commonly known as IFK Norrkoping or simply Norrkoping, is a Swedish professional football club based in Norrkoping. The club is affiliated to Ostergotlands Fotbollforbund and play their home games at Ostgotaporten. The club colours, reflected in their crest and kit, are white and blue. Formed on 29 May 1897, the club have won thirteen national championship titles and six national cup titles.
The club plays in the highest Swedish tier, Allsvenskan, which they first won in 1943. IFK Norrkoping were most successful during the 1940s, when they won five Swedish championships and two Svenska Cupen titles under the Hungarian coach Lajos Czeizler and with players like Gunnar Nordahl and Nils Liedholm.
IFK Norrkoping won the 2015 Allsvenskan, their first win since 1989, which also gave them a spot in the second qualification round of 2016–17 UEFA Champions League.