Fort McPherson (Gwich'in: Teetł'it Zheh [tʰeː.tɬʼɪtʰ ʒɛh], at the head of the waters) is a hamlet located in the Inuvik Region of the Northwest Territories, Canada. It is located on the east bank of the Peel River and is 121 km (75 mi) south of Inuvik on the Dempster Highway.

The First Nations people who make up the majority are Gwich'in (Teetł'it Gwich'in) and the two principal languages spoken are Gwichʼin and English. Originally the site of a Hudson's Bay Company post the community was named for Murdoch McPherson.

Most people have vehicles and regularly make trips to either Inuvik, or Whitehorse, Yukon.

Fort McPherson was the starting point of Francis Joseph Fitzgerald's famous tragic journey of "The Lost Patrol". All four men on the Patrol, including Fitzgerald, were buried at Fort McPherson on 28 March 1911. In 1938, the graves were cemented over into one large tomb (to the right of the flag pole in above image), with cement posts at the four corners connected by a chain. In the centre is a memorial to the Royal Northwest Mounted Police Patrol of 1910.

In 1969, the area comprising the boundaries of the community of Fort McPherson, as it was mapped in 1898, was designated a National Historic Site of Canada, in recognition of the fact that the site had served as the principal Hudson's Bay Company trading post in the MacKenzie Delta region for over 50 years, and had been the first North-West Mounted Police post in the Western Arctic.

Fort McPherson is accessible by road all year from Dawson City and Whitehorse, Yukon, with the exception of spring break-up and fall freeze-up on the Peel River. The community also has access to Inuvik via the Dempster Highway and crosses the Mackenzie River at Tsiigehtchic.

There is also a small airport at Fort McPherson, Fort McPherson Airport, that has seasonal flights to Inuvik (Mike Zubko) Airport on Aklak Air when the road across the Peel is closed. The former Fort McPherson Water Aerodrome was listed as closed in the 15 March 2007 Canada Flight Supplement.

In the 2021 Census of Population conducted by Statistics Canada, Fort McPherson had a population of 647 living in 255 of its 318 total private dwellings, a change of -7.6% from its 2016 population of 700. With a land area of 53.83 km (20.78 sq mi), it had a population density of 12.0/km (31.1/sq mi) in 2021.

In the 2016 Census 695 people identified as Indigenous, 610 as First Nations, 15 as Métis, 20 as Inuit or Inuvialuit, 10 giving multiple or other aboriginal responses and 40 non-Aboriginal.

Federal census population history of Fort McPherson

Year	Pop.	±%
1976	710	—
1981	623	−12.3%
1986	760	+22.0%
1991	759	−0.1%
1996	878	+15.7%
2001	773	−12.0%
2006	776	+0.4%
2011	792	+2.1%
2016	700	−11.6%
2021	647	−7.6%
Source: Statistics Canada

Annual population estimates

Year Pop. ±% 1996 915 —     1997 887 −3.1% 1998 861 −2.9% 1999 861 +0.0% 2000 828 −3.8% 2001 832 +0.5% 2002 809 −2.8% 2003 820 +1.4% 2004 813 −0.9% 2005 814 +0.1% 2006 805 −1.1% 2007 809 +0.5%	Year Pop. ±% 2008 801 −1.0% 2009 815 +1.7% 2010 805 −1.2% 2011 813 +1.0% 2012 810 −0.4% 2013 795 −1.9% 2014 791 −0.5% 2015 786 −0.6% 2016 795 +1.1% 2017 776 −2.4% 2018 672 −13.4% 2019 635 −5.5%
Sources: NWT Bureau of Statistics (2008 - 2019), NWT Bureau of Statistics (2001 - 2017)

Fort McPherson experiences a subarctic climate (Köppen climate classification Dfc). The highest temperature ever recorded in Fort McPherson was 35.1 °C (95.2 °F) on 6 August 2024. The coldest temperature ever recorded was −55.6 °C (−68.1 °F) on 14 January 1894.

• List of municipalities in the Northwest Territories

• Fort McPherson Hamlet website