Lockenhaus (Hungarian: Léka; Croatian: Livka) is a town in the district of Oberpullendorf in the Austrian state of Burgenland.

The town is well known for the annual Lockenhaus Chamber Music Festival founded by violinist Gidon Kremer.

After World War I "Deutsch-Westungarn" (the Burgenland) became part of Austria when the Treaty of Trianon deprived Hungary of about 70% of the territory which it had held for more than nine centuries.

The actor Ludwig Stossel was born in Lockenhaus in 1883 and after emigrating to America appeared in a number of Hollywood films including Casablanca.

A memorial to those members of the Jewish community in Lockenhaus who were murdered in the Holocaust was unveiled in 2008.