Andrzej Stanisław Kostka Załuski (2 December 1695 – 16 December 1758) was a priest (bishop) in the Polish–Lithuanian Commonwealth.
In his religious career, he held the posts of abbot and later Bishop of Płock (from 1723, simultaneously serving as Apostolic Administrator of the Diocese of Pomesania), Bishop of Łuck (1736), Bishop of Chełmno (1739), and Bishop of Cracow (1746). He was a supporter of the Jesuits in Poland.
A member of the Polish nobility (szlachta) of the Junosza coat of arms, he also held the position of the Great Crown Chancellor from 1735 to 1746. As a politician, he was engaged in the movement that wanted to reform the failing political system of the Commonwealth.
He studied in Danzig and Rome.
Załuski was a corresponding member of Societas eruditorum incognitorum in terris Austriacis, the first learned society in Habsburg Austria.
Along with his brother Józef Andrzej Załuski, the bishop of Kyiv, he co-founded the Załuski Library, one of the largest 18th-century book collections in the world. He also sponsored the seminary in Pułtusk.