| Mumiksaa | |
| Pushpin Map: | Canada Nunavut#Canada |
| Native Name Link: | Inuktitut |
| Location: | Eclipse Sound |
| Coordinates: | 72.3161°N -78.96°W |
| Archipelago: | Arctic Archipelago |
| Country: | Canada |
| Country Admin Divisions Title: | Nunavut |
| Country Admin Divisions: | Nunavut |
| Country Admin Divisions Title 1: | Region |
| Country Admin Divisions 1: | Qikiqtaaluk |
| Population: | Uninhabited |
Mumiksaa (Inuktitut syllabics: ᒧᒥᒃᓵ[1]) formerly Frechette Island[2] is a member of the Arctic Archipelago in the territory of Nunavut. Located in Tasiujaq at the mouth of Tay Sound, it is a long and narrow island, approximately 1km (01miles) off the Baffin Island coast. Qimivvik lies to its north.