| Brash Island | |
| Map: | Antarctica |
| Location: | Antarctica |
| Archipelago: | Joinville Island group |
| Population: | Uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty System |
Brash Island is an isolated island lying 5nmi northwest of Darwin Island, off the southeast end of Joinville Island. It was surveyed by the Falkland Islands Dependencies Survey in 1953, and so named by the UK Antarctic Place-Names Committee because the island lies in an area where there is a frequent occurrence of "brash ice" (an accumulation of floating ice made up of fragments not more than 2 m across).
The island has been identified as a 63 ha Important Bird Area (IBA) by BirdLife International because it supports about 166,000 breeding pairs of pygoscelid penguins – probably mainly either Adélie or chinstrap penguins – based on a 2014 estimate from satellite imagery.[1]