"Oceania" is a song recorded by Icelandic singer Björk for her fifth studio album Medúlla. It was written and produced by Björk, with additional writing by Sjón and production by Mark Bell. The song was written by the singer specially for the 2004 Summer Olympics Opening Ceremony, after a request by the International Olympic Committee. "Oceania" was released as a promotional single on 13 August 2004, by One Little Indian Records. The song was written at the ocean's point of view, from which the singer believes all life emerged, and details the human's evolution, whilst accompanied by a choir. "Oceania" was generally well received by music critics, who believed it was the best track from Medúlla, although some thought it was not the best choice for a promotional release.

Björk Guðmundsdóttir is an Icelandic singer, songwriter, composer, record producer, and actress. Noted for her distinct voice, three-octave vocal range, and sometimes eccentric public persona, she has developed an eclectic musical style over a career spanning four decades, drawing on electronic, pop, experimental, trip hop, classical, and avant-garde music.