Zbirka Dunav uspostavljena je u sklopu međunarodnog projekta Danube collections in European National Libraries Austrijske nacionalne knjižnice koji je proveden u razdoblju od 2019. do 2022. godine. Nacionalna i sveučilišna knjižnica u Zagrebu digitalizirala je reprezentativnu građu Posebnih zbirki NSK. Zbirka će se dalje nadopunjavati novom digitalnom i digitaliziranom građom koja se tematski odnosi na Dunav. The Danube Collection was established at the National and University Libray in Zagreb as part of the international project "Danube collections in European National Libraries" led by the Austrian National Library from 2019 to 2022. The National and University Library in Zagreb digitized the representative material of the NSK Special Collections. The Danube collection will be further updated with new digital and digitized materials thematically related to the Danube River.