Marine Ornithology is a biannual open-access peer-reviewed scientific journal published and supported by a partnership between the African, Australasian, Dutch, Japan and Pacific Seabird Groups.

[1][2] The editor-in-chief is David Ainley.

The journal was originally published by John Cooper in November 1976 as a bulletin of the South African Seabird Group under the name The Cormorant.

[3] The journal's current title, Marine Ornithology, was obtained in 1990, following an expansion in scope to cover all seabirds, not only those in Africa.

[4] The journal is abstracted and indexed in: According to the Journal Citation Reports, the journal has a 2022 impact factor of 0.6.