Les Alleux (French pronunciation: [le.z‿alø]) is a former commune in the Ardennes department in northern France. On 1 January 2016, it was merged into the new commune Bairon et ses environs.

Les Alleux is some 30 km (19 mi) east of Rethel and 10 km (6.2 mi) north of Vouziers. The commune can be accessed by the D977 road from Vouziers in the south passing through the commune to the east of the village and continuing to Le Chesne in the north. Access to the village is by the D23 road from Voncq in the west and continuing north to join the D977 inside the commune. Most of the east and west of the commune are forested with the central part farmland.

An unnamed stream rises south of the village and flows north-west to join the Ruisseau des Graquinettes just west of the commune.

Blazon: Gules, a chevron of Or accompanied in chief by two arrows of Argent in pale and in base by a crescent the same; in chief overall Azure charged with three mullets of Or.

This list is incomplete; you can help by adding missing items. (April 2021)

List of Successive Mayors

From	To	Name
1995	2001	Francis Ledig
2001	2014	Joël Gobert
2014	2016	Guillaume Queval

The inhabitants of the commune are known as Alleusiens or Alleusiennes, or alternatively Alleutiers or Alleutières in French.

Historical population

Year Pop. ±% p.a. 1793 231 —     1800 315 +4.53% 1806 317 +0.11% 1821 335 +0.37% 1831 408 +1.99% 1836 437 +1.38% 1841 442 +0.23% 1846 433 −0.41% 1851 425 −0.37% 1866 407 −0.29% 1872 460 +2.06% 1876 427 −1.84% 1881 425 −0.09% 1886 417 −0.38% 1891 361 −2.84% 1896 387 +1.40% 1901 376 −0.58%	Year Pop. ±% p.a. 1906 334 −2.34% 1911 288 −2.92% 1921 231 −2.18% 1926 201 −2.74% 1931 214 +1.26% 1936 160 −5.65% 1946 170 +0.61% 1954 167 −0.22% 1962 166 −0.08% 1968 125 −4.62% 1975 102 −2.86% 1982 69 −5.43% 1990 72 +0.53% 1999 63 −1.47% 2007 79 +2.87% 2012 81 +0.50%
Source: EHESS and INSEE

• Croix de Guerre 1914-1918: 9 March 1921

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  The War Memorial
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  The crossroads of the D977 and the D23
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  A house in Les Alleux
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  The Town Hall
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  The Church of Alleux
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  The entrance to the church
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  Memorial to June 1940
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  Memorial to the counter-offensive of 9–10 June 1940
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  Tomb of the Rivals de la Salle family, owners of the Chateau of Maison-Rouge in 1853
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  Tomb of the Rivals de la Salle family detail
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  The road to Vouziers
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  The bus shleter for the Abribus

• Tristan de Villelongue (1562-1631) was a doctor of theology, councillor of state and a preacher for Henry IV

• Communes of the Ardennes department

• Les Alleux on the old National Geographic Institute website (in French)
• Les Alleux on the 1750 Cassini Map