The Lusatian Alliance (German: Lausitzer Allianz, Upper Sorbian: Łužiska Alianca, Lower Sorbian: Łužyska Alianca), formerly the Wendish People's Party (Upper and Lower Sorbian: Serbska Ludowa Strona, SLS; German: Wendische Volkspartei) is a political party founded on 26 March 2005 in Cottbus to represent the Sorb/Wendish ethnic and linguistic minority (around 60,000 people) in the German states of Saxony and Brandenburg in the region of Lusatia.

The party is a full member of the European Free Alliance.

Another party representing ethnic minorities at state level, the South Schleswig Voter Federation of Danes and Frisians, has gained regional and local representation in the state of Schleswig-Holstein, where it enjoys an exemption from the electoral threshold of 5% thanks to a German-Danish treaty of 1955.

A similar exemption is mentioned in the Brandenburg constitution for the Sorb/Wendish minority, but not in Saxony.

For the 28 September 2008 local elections in Brandenburg, the party took part in the Spree-Neiße Kreis (district) elections on a ticket with the Klinge Runde Citizens Initiative as «Bürger für die Lausitz – Klinger Runde».