The 80th parallel south is a circle of latitude that is 80 degrees south of the Earth's equatorial plane, and 10 degrees (690 miles/1100 kilometers) north of the United States Amundsen Scott South Pole Station. Regions south of this latitude are excluded from UTM zones.
This line of latitude passes only through Antarctica and Antarctic ice shelves.
Starting at the Prime Meridian and heading eastwards, the parallel 80° south passes through:
| Co-ordinates | Continent | Sub-continent | Local area | Claimed by |
|---|---|---|---|---|
| Antarctica | Part of Queen Maud Land | |||
| Enderby Land, Kemp Land, Mac. Robertson Land, Princess Elizabeth Land, Kaiser Wilhelm II Land, Queen Mary Land, Wilkes Land, aka Western Australian Antarctic Territory | ||||
| Adélie Land | ||||
| George V Land, Oates Land, Victoria Land, aka Eastern Australian Antarctic Territory | ||||
| Ross Dependency | ||||
| Marie Byrd Land Ellsworth Land | Unclaimed territory | |||
| Ellsworth Land, in parts Antártica Chilena | ||||
| Ellsworth Land | and (overlapping claims) | |||
| Antarctic Peninsula | , and (overlapping claims) | |||
| Filchner-Ronne Ice Shelf | and (overlapping claims) | |||
| Coats Land, part of British Antarctic Territory | ||||
| Part of Queen Maud Land |