| Southend | |
| Official Name: | Southend Reindeer[1] |
| Settlement Type: | Northern settlement |
| Mapsize: | 200 |
| Pushpin Map: | Saskatchewan#Canada |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 18 |
| Subdivision Type4: | Rural municipality |
| Subdivision Name4: | Northern Saskatchewan Administration District |
| Subdivision Type5: | Federal riding |
| Subdivision Type6: | Provincial riding |
| Leader Title: | Mayor |
| Leader Title2: | Administrator |
| Established Title: | Founded |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 56.3296°N -103.2426°W |
| Postal Code Type: | Postal code |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank Info: | 102 |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
| Blank2 Info: | Reindeer Lake |
Southend (script=Cans|i=no|ᐚᐹᑎᑯᒋᐘᓄᕽ|wâpâtikociwanohk) is a community in north-eastern Saskatchewan, Canada. It is situated on Big Island[2] at the southern end of Reindeer Lake — the ninth largest lake in Canada. The community is the terminus of Highway 102 and is about north-east of La Ronge.
The community consists of the northern settlement of Southend with a population of 35[3] and Southend 200, an Indian reserve of the Peter Ballantyne Cree Nation, with a population of 904.
Fur trade posts were established at or near the community as early as 1792. Reindeer River Post (1792, 1795) at Southend was a North West Company Post. Reindeer Lake Post (or Clapham House) (1798–1892) at Southend was a Hudson's Bay Company post. South Reindeer Lake Post (1936–1941) was a Hudson's Bay Company post located south of Southend on the Reindeer River.[4]
In February 1980, two sounding Black Brant 5B rockets were launched from Southend. They reached an altitude of about 156 kilometres.[5]
The population of Southend 200, IR Saskatchewan was 904 in 2011. Cree was the mother tongue chosen by 465 residents followed by English with 425 and Dene with 5. Almost all residents also spoke English.