| Austin Bay | |
| Location: | Dolphin and Union Strait |
| Countries: | Canada |
| Pushpin Map: | Canada |
| Cities: | Uninhabited |
Austin Bay is an Arctic waterway in the Kitikmeot Region, Nunavut, Canada. It is located in Dolphin and Union Strait, by southwestern Victoria Island. It is separated from the Coronation Gulf by a small peninsula. Lady Franklin Point is located at the southwest point of the bay.
Climate data is from Lady Franklin Point.