The Österreichischer Bibliothekenverbund (obv; English: "Austrian joint library system") is a catalogue and service collaboration for Austrian scientific and administrative libraries centered on the Österreichische Nationalbibliothek (Austrian National Library) and university libraries, among them the University of Vienna, the Technical University of Vienna, Graz University of Technology and the University of Innsbruck.
The Österreichischer Bibliothekenverbund (obv) is a collaborative network of libraries in Austria, particularly focused on scientific and administrative institutions, with the Austrian National Library as its central hub. It also includes prominent universities like the University of Vienna, Technical University of Vienna, Graz University of Technology, and the University of Innsbruck.