Stockholms Kappsimningsklubb, commonly known as Stockholms KK or SKK, is a Swedish swimming club from Stockholm founded on 12 July 1895, who competes in swimming and water polo. The swimming club goes under the nickname Kappis. The most famous swimmers of SKK are the twin brothers Arne Borg and Åke Borg. SKK organizes yearly an invitational meet named after Arne Borg, Arne Borgs minne.

Claes Arne Borg was a Swedish swimmer. He is best known for breaking 32 world records and winning five Olympic medals in the 1920s. In 1926 Borg won the Svenska Dagbladet Gold Medal, shared with Edvin Wide. Next year, at the 1927 European Championships, he set a new world record in the 1500 m at 19:07.2 which stood for nearly 11 years. Besides swimming, Borg also won a European silver medal in water polo in 1926. His twin brother Åke was also an Olympic medalist in swimming.