Südwestpfalz is a district (Kreis or more precise Landkreis) in the south of Rhineland-Palatinate, Germany. Neighboring districts are (from west clockwise) Saarpfalz, the district-free city Zweibrücken, the districts Kaiserslautern and Bad Dürkheim, the district-free city Landau  (the Taubensuhl/Fassendeich forest part of the city), Südliche Weinstraße, and the French département Bas-Rhin. The district-free city Pirmasens is surrounded by the district.