The Arch of Campanus is an ancient Roman funerary monument located in the commune of Aix-les-Bains, Savoie, Rhône-Alpes, France.

Erected in the 1st century AD, it has been classified as a French monument historique since 7 August 1890.

[5] The arch was erected at the end of the 1st century by Lucius Pompeius Campanus, a patrician of Gallia Narbonensis,[2] a rich notable Allobroge from the city of Vienne (to which Aquae was subordinate).

Forgotten, the arch became the entrance to the courthouse in the 16th century and was later integrated into the wall of a stable, gradually buried, and finally rescued in 1821.

It remained standing after the destruction in 1867 of a hotel that stood in the middle of the modern Place Maurice Mollard.