Palazzo Ariani, Gothic palace in Venice, Italy

Palazzo Ariani is a three-story palace in Dorsoduro, one of Venice's oldest Venetian Gothic buildings. Its facade has an esafora and two Gothic single-lancet windows on the right; the left side has two poliforas. A courtyard, partly enclosed by the building and partly by a wall, holds a staircase on pointed arches leading to the upper floors.

Palazzo Ariani stands on a foundation documented from 845, while the present building dates largely to the 13th–14th centuries. It belonged to the Arian family, enrolled in the Venetian patriciate, until the line died out in the 17th century with Giacomo Arian. It then passed to the Pasqualigo family and, after further changes of ownership, to the nun Lucia Cicogna, who turned it into a girls' college; from 1870 it belonged to the city, then the province.

The ground floor housed shops and workshops, while the upper stories contained living spaces arranged around a central hall called the portego. This layout reflects how Venetian noble families integrated commerce and domestic life within a single structure.

The palace now houses the Istituto Tecnico "Vendramin Corner", a public school, so the interior is not open to casual visitors; the facade and courtyard are best seen from the street and from the Ponte del Soccorso, which links the building to Ca' Zenobio degli Armeni.

The palace stands on a foundation from the 9th century, and the present building dates from the 14th century, making it one of the oldest examples of Venetian Gothic in the city. Its last Arian heir, Giacomo Arian, died around 1650, ending the family line that had owned it for centuries.