L'Isle-en-Dodon (French pronunciation: [l il ɑ̃ dɔdɔ̃]; Occitan: L'Isla de Haut) is a commune in the Haute-Garonne department in southwestern France. The commune has the short border with the neighbouring department, Gers.

The rugby team is the focal point of the community. Based in the municipal stadium it regularly attracts 1000 spectators and regularly qualifies for the last 32 and beyond in the Federale 3 playoffs

L'Isle-en-Dodon is located on the Save river, at the northern end of the plate of Lannemezan. The slopes which surround the city point out the nearby gersois country.

Historical population

Year	Pop.	±%
1962	1,779	—
1968	2,046	+15.0%
1975	2,022	−1.2%
1982	2,039	+0.8%
1990	2,037	−0.1%
1999	1,905	−6.5%
2005	2,000	+5.0%
2008	2,084	+4.2%
2010	1,984	−4.8%
2015	1,677	−15.5%
2018	1,633	−2.6%

The inhabitants of the commune are called lislois

L'Isle-en-Dodon is 60 kilometres from Toulouse by road, a journey which takes approximately one hour. A regular bus service runs three times a day to Toulouse. At Saint-Gaudens, 45 km (28 mi) to the south in the valley of the Garonne, the A64 autoroute and the SNCF train line pass.

Communes of the Haute-Garonne department