Stefan Aleksander Potocki (born c. 1662; died 1726 or 1727), was a Polish nobleman, the voivode of Belz.

With his second wife Joanna Sieniawska, he founded a UGCC Basilian monastery in Buchach[1] in Lublin, on December 7, 1712.

His son Mikołaj Bazyli Potocki became the Starost of Bohuslav and Kaniv, benefactor of the Buchach townhall, Pochayiv Lavra, and Dominican Church in Lviv, and a deputy in the Sejm.

In July of the same year, he decided to marry Joanna Sieniawska, daughter of Mikołaj Hieronim Sieniawski.

According to priest and historian Sadok Barącz, Potocki died in the early morning of August 1, 1727, at the age of 65.

A little later, Jerzy Sewer Dunin-Borkowski repeated August 1, 1727 as the date of death and added that Potocki died in Horodenka.

Andrzej Link-Lenczowski claimed that Potocki died in 1726; this date was repeated by Tomasz Henryk Skrzypecki.