Hôtel Dahus, Renaissance private mansion in Toulouse, France

Hôtel Dahus is a private mansion at 9 rue Théodore-Ozenne in Toulouse. Its tan brick main building, built in the 1460s–1470s, has a rectangular plan and is topped by blind machicolations and crenellations. A central tower, rebuilt from 1532 and completed in the second half of the 17th century, has an octagonal upper section with small windows, a crenellated top and a smaller domed turret. The facade has rows of rectangular windows with stone surrounds and mullions.

Built in the 1460s–1470s for the lawyer Pierre Dahus, capitoul in 1474–1475, the mansion passed in 1528 to Guillaume de Tournoer, president of the Parlement of Toulouse, who had the staircase tower rebuilt in 1532; it was finished only in the second half of the 17th century. In 1910 the cutting of rue Théodore-Ozenne removed the west part, and the former party wall became the facade. It was listed as a monument historique on 27 June 1925.

The mansion, registered as a historical monument, represents the domestic architecture of wealthy residents during the French Renaissance period in southwestern France.

The mansion stands at 9 rue Théodore-Ozenne, a street cut through the old property in 1910, so only part of the main lodge survives. The interior is private and not open to visitors; the tower, crenellated parapets and mullioned windows are seen from the street. The Latin motto is carved in stone on the tower.

The tower carries a Latin inscription in the stone: ESTO MICHI DOMINE TURRIS FORTITUDINIS A FACIE INIMICI, meaning "Lord, be for me a tower of courage against the enemy". The tower itself was begun in 1532 but only finished in the second half of the 17th century.