Idrottsföreningen Kamraterna Norrköping, more commonly known as IFK Norrköping or simply Norrköping, is a Swedish professional football club based in Norrköping. The club is affiliated to Östergötlands Fotbollförbund and play their home games at Östgötaporten. The club colors, 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.