'Southwest Palatinate') 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.

In 1969, the neighboring district Bad Bergzabern was dissolved and some part of it was added, while other municipalities were incorporated into the city Pirmasens.

The three red bars on golden ground in the left half is the coat of arms of Hanau-Lichtenberg, while the lion in the right half is the lion of the Electorate of the Palatinate.

These mark the two historic states which were located on the district's area until the end of the 18th century.