KTH Sailing Society, KTHSS, was founded on December 11, 1963, and is an union association under THS Student Union at KTH.

The association is open to students or graduates from KTH, as well as THS staff members. Our purpose is to support our members’ interests in water sports and to promote increased interest in sailing at KTH. We annually organize and participate in several regattas, as well as arrange courses and other activities.