Cloridorme is a township municipality in the Gaspé Peninsula, Quebec, Canada. Cloridorme's economy is centred on fishing. Its population, according to the 2021 Canadian Census was 607. The township stretches for 16 kilometres (10 mi) along the Gulf of Saint Lawrence and includes Cloridorme Bay where the Little and Great Cloridorme Rivers have their mouths.

In addition to the village of Cloridorme itself, the township's territory also includes the communities of Cloridorme-Ouest, Petite-Anse, Pointe-à-la-Frégate, and Saint-Yvon.

Archival documents indicate that "Chlorydormes" was a place in the Jersey Islands, near the village of St John. Emigrants from Jersey have contributed to the primary population of the Gaspé area, including Cloridorme that was settled by a community of fishermen from Jersey. In particular, a certain Lewis Gibaut, friend of Georges Godfray of Grand-Étang (a neighboring village of Cloridorme) and who worked for William Hyman and Sons, returned to die in Chlorydormes, St-John, Jersey.

The name has been in use since at least the middle of the 18th-century, as indicated by its use on a map of 1755, and by the 19th-century, the name Les Chlorydormes was used for 2 bays on the coast (now Cloridorme Bay and Petit-Cloridorme Cove where the Grand-Cloridorme and Petit-Cloridorme Rivers empty into the St. Lawrence respectively). The spelling modification and change from plural to singular occurred at the end of the 19th century.

The area was first settled in 1838 by people from Montmagny. In 1853, a mission was set up, called Sainte-Cécile-de-Cloridorme. In 1871, the geographic township was formed, the following year the post office opened (called Chlorydormes, and changed to Cloridorme in 1921), and the year after that, the mission became a parish. In 1885, the Township Municipality of Cloridorme was established.

In 1957, the township lost a portion of its territory when Petite-Vallée became a separate incorporated municipality.

In the 2021 Census of Population conducted by Statistics Canada, Cloridorme had a population of 607 living in 315 of its 382 total private dwellings, a change of -9.5% from its 2016 population of 671. With a land area of 158.74 km (61.29 sq mi), it had a population density of 3.8/km (9.9/sq mi) in 2021.

Historical Census Data - Cloridorme, Quebec

Year Pop. ±% 1891 647 —     1901 785 +21.3% 1911 999 +27.3% 1921 953 −4.6% 1931 834 −12.5% 1941 1,437 +72.3% 1951 1,644 +14.4%	Year Pop. ±% 1956 1,722 +4.7% 1961 1,275 −26.0% 1966 1,600 +25.5% 1971 1,452 −9.3% 1976 1,370 −5.6% 1981 1,389 +1.4% 1986 1,318 −5.1%	Year Pop. ±% 1991 1,166 −11.5% 1996 1,084 −7.0% 2001 917 −15.4% 2006 764 −16.7% 2011 743 −2.7% 2016 671 −9.7% 2021 607 −9.5%
Population counts are not adjusted for boundary changes. Source: Statistics Canada

Canada Census Mother Tongue - Cloridorme, Quebec
Census		Total		French				English				French & English				Other
Year		Responses		Count	Trend	Pop %		Count	Trend	Pop %		Count	Trend	Pop %		Count	Trend	Pop %
2021		605		600	9.8%	99.2%		5	n/a%	0.8%		0	100.0%	0.0%		0	0.0%	0.0%
2016		670		665	10.1%	99.3%		0	0.0%	0.0%		5	n/a%	0.7%		0	0.0%	0.0%
2011		740		740	2.0%	100.0%		0	100.0%	0.0%		0	0.0%	0.0%		0	0.0%	0.0%
2006		765		755	16.6%	98.69%		10	n/a%	1.31%		0	0.0%	0.0%		0	0.0%	0.0%
2001		905		905	11.3%	97.26%		0	0.0%	0.0%		0	0.0%	0.0%		0	0.0%	0.0%
1996		1,090		1,090	n/a	100.0%		0	n/a	0.0%		0	n/a	0.0%		0	n/a	0.0%

List of former mayors:

• List of township municipalities in Quebec

• Official website
• Facts about Cloridorme