威尼斯救主堂（Il Redentore，全称Chiesa del Santissimo Redentore）是威尼斯朱代卡岛上巨大的穹顶教堂，毗邻朱代卡水道（Canale della Giudecca），主宰了该岛的天际线。

修建这座教堂是为了感恩：从1575年至1576年毁灭威尼斯的黑死病中蒙解救，有46,000人，占威尼斯25-30%的人口死亡。议会委托大建筑师安德烈亚·帕拉弟奥负责设计。施工开始于1577年5月，1592年祝圣。

每年，威尼斯总督和参议员穿过一个特别建造的浮桥从Zattere到朱代卡岛，出席教堂的弥撒。救世主节仍然是威尼斯的重大节日，在7月的第三个星期天庆祝。在前一天晚上举行大型烟花汇演，然后是大规模游行穿过浮桥。教堂一直是委托给嘉布遣会，大约有20人住在附设的修道院。

The Chiesa del Santissimo Redentore (English: Church of the Most Holy Redeemer), commonly known as Il Redentore, is a 16th-century Roman Catholic church located on Giudecca (island) in the sestiere of Dorsoduro, in the city of Venice, Italy.

It was designed by the architect Andrea Palladio and built as a votive church to thank God for the deliverance of the city from a major outbreak of the plague. Located on the waterfront of the Canale della Giudecca, it dominates the skyline of the island of Giudecca. It is a member of the Chorus Association of Venetian churches and contains a number of paintings by artists including Tintoretto, Paolo Veronese and Francesco Bassano.