Regionalliga Sdwest is the fifth tier of the German football league system and one of the five Regionalligas in Germany, the fourth tier of the German football league system. It covers the southwestern region of Germany and it’s one of the five leagues at this level, along with the Regionalliga Bayern, Regionalliga Nordost, Regionalliga Nord and Regionalliga West. The league was formed in 2012 and is organized by the Southwestern Regional Football Association (SWFV). It operates on a promotion and relegation system with the 3. Liga and the Oberliga, the sixth tier of the league system in the southwestern region of Germany.