Gamla Upsala SK is a Swedish football club located in Uppsala.

[1] Since their foundation on 24 April 1947 Gamla Upsala SK has participated mainly in the middle and lower divisions of the Swedish football league system.

The club currently plays in Division 2 Norra Svealand which is the fourth tier of Swedish football.

Football has been the dominant sport for GUSK but the club has also specialised in table tennis, cross-country skiing, bandy and floorball.

[4] Gamla Upsala SK are affiliated to the Upplands Fotbollförbund.