Hafsa Sultan Caravanserai (Turkish: Hafsa Sultan Kervansarayı) is a 16th-century caravansarai in Marmaris ilçe (district) of Muğla Province, southwestern Turkey.

Marmaris Caravanserai was commissioned by the Ottoman sultan Suleiman the Magnificent (reigned 1520–1566) during his campaign to Rhodes in 1522–23.

In this campaign, the main Anatolian base of the Ottoman army was in Marmaris.

[2] The building, with one big and seven small rooms,[3] was constructed to serve as headquarters.

Currently, the caravanserai is a private property and its rooms have been rented to touristic shops and taverns.