Estoi (Portuguese pronunciation: [ɨˈʃtoi]) is a former civil parish in the municipality of Faro, in the Algarve, Portugal.

Estoi is a village and parish in the municipality of Faro, a rural zone that extends from the fertile fields of Campina de Faro, until the peaks of Serra do Monte Figo (Cerros de São Miguel, Azinheiro, Malhão, Bemposta, Monteiro and Guelhim), that have been, since antiquity, beacons for navigation and natural outlooks along the coast of the Algarvian Riviera.

The Estoi Palace is a rococo building renowned for its gardens and azulejos (blue and white tiled ceramic).

The palace was built in the late 19th century and is the finest example of this kind of architecture in the district of Faro.

Other examples of his work are located in nearby towns, most notably the Arco de Vila in Faro.