| Official Name: | Sanirajak |
| Native Name: | ᓴᓂᕋᔭᒃ |
| Settlement Type: | Hamlet |
| Pushpin Map: | Canada Nunavut#Canada |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Territory |
| Subdivision Name1: | Nunavut |
| Subdivision Type2: | Region |
| Subdivision Name2: | Qikiqtaaluk |
| Subdivision Type3: | Electoral district |
| Subdivision Name3: | Amittuq |
| Government Footnotes: | [1] [2] |
| Leader Title: | Mayor |
| Leader Name: | Philip Anguratsiaq |
| Leader Title1: | MLA Amittuq |
| Leader Name1: | Joelie Kaernerk |
| Established Title: | Settled |
| Established Date: | 1953 |
| Area Footnotes: | (2021) |
| Area Total Km2: | 16.36 |
| Population As Of: | 2021 |
| Population Total: | 891 |
| Population Density Km2: | 54.5 |
| Timezone: | EST |
| Utc Offset: | −05:00 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −04:00 |
| Coordinates: | 68.7903°N -81.2375°W |
| Elevation Footnotes: | [3] |
| Elevation M: | 8 |
| Postal Code Type: | Canadian Postal code |
| Postal Code: | X0A 0K0 |
| Area Code: | 867 |
Sanirajak (Inuktitut meaning the shoreline[4]), Syllabics: ᓴᓂᕋᔭᒃ), formerly known as Hall Beach until 27 February 2020,[5] is an Inuit settlement within the Qikiqtaaluk Region of Nunavut, Canada, approximately south of Igloolik.
It was established in 1957 during the construction of a Distant Early Warning (DEW) site. Currently the settlement is home to a North Warning System radar facility and the Hall Beach Airport.
In 1971, seven sounding rockets of the Tomahawk Sandia type were launched from Sanirajak, some reaching altitudes of .[6]
In the 2021 Canadian census conducted by Statistics Canada, Sanirajak (Hall Beach) had a population of 891 living in 197 of its 205 total private dwellings, a change of from its 2016 population of 848. With a land area of, it had a population density of in 2021.[7]
Sanirajak has a tundra climate (Köppen: ETf), a polar climate sub-type under the Köppen climate classification, without the presence of trees, and iced over for most of the year.[8] Summers are very short and cool, with chilly nights. Winters are long and extremely cold, lasting most of the year with little chance of a thaw.