Dar El Bey (Arabic: دار الباي), also known as the government palace (Arabic: قصر الحكومة) is an old palace in the medina of Tunis, more precisely in the city's Kasbah.

Nowadays, it serves as the office of the Head of Government of Tunisia but was used by guests of the State previously.

Henri Dunant considers it as «the most beautiful moorish royal house in the world».

The palace's decoration is very rich and diverse with, as an example, sixteen twisted columns with their arches in white marble: the rooms were designed by Tunisian, Spanish and Moroccan artists.

These rooms are distinguished by their special rooftops highly decorated with painted scenes and precious materials, as well as Andalusian style faience.