The Palace of the Dukes of Palmela (Portuguese: Palácio dos Duques de Palmela) is a Portuguese palace located in Lisbon, Portugal.

The Palace of the Dukes of Palmela dates from the late 18th century, having been designed by Manuel Caetano de Sousa in the year 1792.

The main entrance to the palace is guarded by the presence of two larger than life sculptures on either side of the door and the coat of arms of the Dukes of Palmela above.

In 1981 the building suffered a fire that destroyed the palace's chapel.

The palace is currently the headquarters of the Portuguese Attorney General's Office.