Antichan-de-Frontignes (French pronunciation: [ɑ̃tiʃɑ̃ də fʁɔ̃tiɲ]; Occitan: Antishan de Frontinhas) is a commune in the Haute-Garonne department in the Occitanie region of south-western France.

Antichan-de-Frontignes is located at the foot of the Pyrenees in the Comminges region some 40 km east by south-east of Bagnères-de-Bigorre and 19 km south by south-west of Saint-Gaudens. Access to the commune is by the D618 road which branches from the D331 east of Ore and goes to the village then continues north-east by a roundabout route to Juzet-d'Izaut. There is also a local road going from the D618 north of the village to Saint-Pé-d'Ardet. Most of the commune is heavily forested however there is some farmland near the village.

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

List of Successive Mayors

From	To	Name
2001	2026	Bernard Dumail

The inhabitants of the commune are known as Antichanais or Antichanaises in French.

Historical population

Year Pop. ±% p.a. 1793 241 —     1800 250 +0.53% 1806 242 −0.54% 1821 288 +1.17% 1831 349 +1.94% 1836 336 −0.76% 1841 335 −0.06% 1846 330 −0.30% 1851 333 +0.18% 1856 320 −0.79% 1861 318 −0.13% 1866 364 +2.74% 1872 309 −2.69% 1876 324 +1.19% 1881 293 −1.99% 1886 286 −0.48% 1891 281 −0.35% 1896 274 −0.50%	Year Pop. ±% p.a. 1901 258 −1.20% 1906 282 +1.79% 1911 262 −1.46% 1921 241 −0.83% 1926 238 −0.25% 1931 244 +0.50% 1936 240 −0.33% 1946 112 −7.34% 1954 103 −1.04% 1962 96 −0.88% 1968 92 −0.71% 1975 71 −3.63% 1982 75 +0.79% 1990 73 −0.34% 1999 84 +1.57% 2007 82 −0.30% 2012 91 +2.10% 2017 157 +11.52%
Source: EHESS and INSEE

• The village is the point of departure for a hiking trail which crosses the Col des Ares 4.5 km from the village then continues to the summits of the Pic du Gar and the Saillant Peak.
• The Church of Notre-Dame of the Assumption

• Communes of the Haute-Garonne department

• Antichan-de-Frontignes on the old IGN website (in French)
• Antichan-de-Frontignes on Géoportail, National Geographic Institute (IGN) website (in French)
• Antichan-de-Frontignes on the 1750 Cassini Map