| Pegasus Bay | |
|---|---|
 Pegasus Bay, with New Brighton the spit in the foreground | |
 Location of Pegasus Bay | |
| Location | South Island |
| Coordinates | 43°20′S 173°00′E / 43.333°S 173.000°E |
| Type | Bay |
| Part of | Pacific Ocean |
| Basin countries | New Zealand |
Pegasus Bay, earlier known as Cook's Mistake, is a bay on the east coast of the South Island of New Zealand, to the north of Banks Peninsula.