The Sejny Theatre is an extension of the Centre Borderland of arts, cultures, and ethnic groups in Sejny.
They started with minor theatrical-musical performances as pretexts for meeting people on holiday trips in the borderland regions - Polish-Lithuanian, Polish-Belarussian, and Polish-Ukrainian. They draw upon cultural legacy and the past, which are their inspiration in their artistic efforts (theatrical performances, music, photographic exhibitions, films).
The members of the group study culture studies and various philologies at the University of Warsaw. The group (consisting of Aneta Stabińska, Magdalena Urynowicz, Irena Namiotkiewicz, Robert Tomkiewicz, Mariusz Tomkiewicz, Adam Pogorzelski, Michał Moniuszko, Radosław Polakowski, Artur Kisielewski) works in Sejny under the guidance of Małgorzata Sporek-Czyżewska and Wojciech Szroeder.

In the theatre repertoire: "Dybuk" and "Wijuny"