Loudéac (French pronunciation: [ludeak]; Breton: Loudieg; Gallo: Loudia) is a commune in the Côtes-d'Armor department, Brittany, northwestern France.

Loudéac has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Loudéac is 11.4 °C (52.5 °F). The average annual rainfall is 901.3 mm (35.48 in) with December as the wettest month. The temperatures are highest on average in August, at around 17.8 °C (64.0 °F), and lowest in January, at around 5.6 °C (42.1 °F). The highest temperature ever recorded in Loudéac was 37.9 °C (100.2 °F) on 9 August 2003; the coldest temperature ever recorded was −11.0 °C (12.2 °F) on 2 January 1997.

The inhabitants of Loudéac are known in French as Loudéaciens and Loudéaciennes.

Historical population

Year Pop. ±% p.a. 1793 6,594 —     1800 6,096 −1.12% 1806 5,869 −0.63% 1821 6,481 +0.66% 1831 6,736 +0.39% 1836 6,865 +0.38% 1841 6,521 −1.02% 1846 6,616 +0.29% 1851 6,229 −1.20% 1856 6,089 −0.45% 1861 6,081 −0.03% 1866 6,072 −0.03% 1872 5,993 −0.22% 1876 5,901 −0.39% 1881 5,893 −0.03% 1886 5,899 +0.02% 1891 5,913 +0.05% 1896 5,759 −0.53%	Year Pop. ±% p.a. 1901 5,782 +0.08% 1906 5,746 −0.12% 1911 5,745 −0.00% 1921 5,560 −0.33% 1926 5,433 −0.46% 1931 5,426 −0.03% 1936 5,592 +0.60% 1946 5,876 +0.50% 1954 5,788 −0.19% 1962 5,925 +0.29% 1968 7,212 +3.33% 1975 9,150 +3.46% 1982 9,729 +0.88% 1990 9,820 +0.12% 1999 9,371 −0.52% 2007 9,619 +0.33% 2012 9,661 +0.09% 2017 9,571 −0.19%
Source: EHESS and INSEE (1968-2017)

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• Éon de l'Étoile
• Pape Sy, basketball player
• Penda Sy, basketball player

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Loudéac has 2 football teams, FC Saint-Bugan, named after an area in the town, and Loudéac OSC, formed from the amalgamation of Stade Loudéacien (1909) and Avenir Sportif Loudéacien (1966) on 1 June 2001. Loudéac OSC is traditionally a big club on the amateur scene in the region (being one of the larger towns). Recently, the club has restructured with a strong policy on developing youth, which has paid dividends as the club are again rising through the divisions. There is also a female team within the club. There is a handball team in the town, l'Amicale Laîque Loudéac Handball who compete across male and female senior and junior competition. A rugby team based in the town is named the Loup'déaciens (a play on words on the word 'loup' which means 'wolf' in French. There is a strong local pool scene, which has culminated in a youth based in the town becoming a world champion at youth level as part of a French team.

Discussions to build a covered Velodrome in Loudeac started in 2013, in 2018 the council held a vote and approved the construction with 62 votes for, 3 against and 3 abstentions. . Construction began in January 2022 and was completed in July 2023 costing an estimated 13 million Euros, the velodrome subsequently opened in September 2023. Named 'Vélodrome de Bretagne' it has a 200 metre wooden track and a 1500 person capacity with 500 seats.

• Communes of the Côtes-d'Armor department

• Official website (in French)
• Base Mérimée: Search for heritage in the commune, Ministère français de la Culture. (in French)