Idrettslaget Flint is a Norwegian sports club from Søndre Slagen, Tønsberg, Vestfold. It has sections for association football, team handball, volleyball, table tennis and track and field. Flint is the largest sports club in Vestfold, and the club introduced a new clubhouse in May 2015. The clubhouse is located on Løveid by , with associated sports facilities and courts. In addition, a number of local grass and gravel courts, school gyms, and Slagenhallen (next to Presterød school) are used. The club was founded on 28 April 1917.