Kolbotn is the centre of Oppegård, Norway. The population is about 6,000. Kolbotn has several elementary schools, four middle schools and a high school. Town is located at the end of Kolbotnvannet, a lake.
The football team Kolbotn IL hails from here. In 2006 Kolbotn women's team were top of the top league for women in Norway, the Toppserien. The team included Norwegian national footballers Solveig Gulbrandsen, Trine Rønning, Christine Colombo Nilsen and Isabell Herlovsen. Striker Rebecca Angus from Middlesbrough, England also played four seasons for Kolbotn in 2007-10. Kolbotn won the 2007 Cup competition by beating Asker 4-2 on 10-11-07. Kolbotn finished in third place in the Toppserien league for three seasons 2009-11 while coached by Dan Eggen.