Idrettsforeningen Herkules is a Norwegian multi-sports club from Skien, Telemark.

It is organized as an alliance club with independent sections for association football, team handball, track and field athletics, gymnastics, Nordic skiing and speed skating.

The club was founded on 4 May 1920 and used a moor next to Skiensfjorden Skofabrikk.

Earlier, after the Second World War II, the club had spells on Norway's second tier in 1952–53 and 1955–56.

It is also known as the childhood club of Rune Almenning Jarstein.