| Lord Mayor Bay | |
|---|---|
| Location | Western Gulf of Boothia |
| Countries | Canada |
| Settlements | Uninhabited |
Lord Mayor Bay is an Arctic waterway in Kitikmeot Region, Nunavut, Canada. It is located in the west of the Gulf of Boothia.
The bay is roughly diamond-shaped. To the north-east the bay opens into the Gulf of Boothia; the Astronomical Society Islands lie in the bay's mouth. The Nunavut mainland surrounds the rest of the bay; to the north-west is the Boothia Peninsula.