Cantus Arcticus, Op. 61, is a 1972 orchestral composition by the Finnish composer Einojuhani Rautavaara. It is one of his best-known works. Subtitled Concerto for Birds and Orchestra, it incorporates tape recordings of birdsong recorded near the Arctic Circle, and on the bogs of Liminka, in northern Finland. Cantus Arcticus was commissioned by the University of Oulu for its first doctoral degree ceremony and premièred on 18 October 1972 with Stephen Portman conducting.