The Institut aérotechnique (IAT) is a French public research laboratory part of the Conservatoire national des arts et métiers, specializing in aerodynamic studies, located in Saint-Cyr-l'École (Yvelines).

[1] The creation of this institute is thanks to an initiative of Henri Deutsch de la Meurthe, also founder of the Aéro-Club de France.

Its inauguration took place on July 8, 1911.

[2] It currently has several wind tunnels, some of which specialize in the automotive, railway and aerospace sectors.

Concerning aeronautics, the laboratory has a partnership with the Institut polytechnique des sciences avancées.