Rainer Kumm was a German rugby player, who played fly-half for the German national team as well as the German Sevens team, a team he captained in the late 1990s. Kumm was a member of the German national team which toured Canada in 1988 and later competed in the erstwhile FIRA Tournaments. He was also part of the Germany sevens squads, which won the Bowl final of the 1990 Hong Kong Sevens, reached the Plate Final of the 1997 Punta Del Este Sevens, won the Bowl Final of the 1997 Paris Sevens, and contested the Bowl Final of the 2000 IRB Sevens World Series tournament in Punta del Este.