Thonon Agglomération is the communauté d'agglomération, an intercommunal structure, centred on the city of Thonon-les-Bains.

It is located in the Haute-Savoie department, in the Auvergne-Rhône-Alpes region, eastern France.

Its population was 90,531 in 2019, of which 35,826 in Thonon-les-Bains proper.

[2] The communauté d'agglomération consists of the following 25 communes:[1][3]

This Haute-Savoie geographical article is a stub.