Invalidovna (French "hôtel des invalides") is a building in Karlín, a district of Prague.
Invalidovna was built from 1731-37 as a dormitory for war invalids (veterans) by Kilián Ignác Dienzenhofer. Its model was Les Invalides, a building for veterans inaugurated in Paris in 1679. Only a ninth of the original design was ever completed. At most, about 1200 inmates lived there. In 1935 all inhabitants moved to another "invalidovna", at Hořice, and the building was used by the Czech army. After this, it was used as an army archive. The building was damaged by a large flood in 2002, and most of the archive materials was destroyed. The building currently awaits an expensive reconstruction. One possible future use is as a part of the Philosophical Faculty of the Charles University of Prague.
The metro station Invalidovna is named after this building.