拉齐维乌家族（波兰语：Radziwiłł；白俄罗斯语：Радзівіл, Radzivił；德语：Radziwill；拉丁语：Radvil；立陶宛语：Radvila）是一个出身于立陶宛的国际性家族。其也是先在立陶宛大公国，随后在波兰立陶宛联邦和普鲁士家族享有很大特权的上等贵族家族。该家族在立陶宛、白俄罗斯、波兰、德国（主要在普鲁士）等国的，乃至整个欧洲历史及文化当中，名人如云。拉齐维乌家族从神圣罗马帝国得到“亲王”（德语：Reichsfürst；波兰语：książę；白俄罗斯语：князь, kniaź；立陶宛语：kunigaikštis）头衔。该家族自16世纪起到1939年为止建造的一系列建筑被列入世界遗产名录中， ，而白俄罗斯、芬兰、立陶宛、波兰、俄罗斯和乌克兰在2008年联合提出将拉齐维乌家族档案列入世界记忆名录，而该家族档案在2009年被正式列入名录中。

The Radziwiłł family (Polish pronunciation: [radʑiˈviw]; Lithuanian:Radvila; Belarusian:Радзівіл, Radzivił; German:Radziwill; Latin:Radvil) is a Polish noble and aristocratic family originating from the Grand Duchy of Lithuania. The descendants of Kristinas Astikas, a Lithuanian and a close associate of the 14th century Lithuanian ruler Vytautas, were highly prominent for centuries, first in the Grand Duchy of Lithuania, later in the Polish–Lithuanian Commonwealth and the Kingdom of Prussia. The family has produced many individuals notable in Lithuanian, Belarusian, Polish, German (particularly Prussian) and general European history and culture. The Radziwiłł family received the title of Reichsfürst (prince, Polish:książę, Lithuanian:kunigaikštis, Belarusian:князь, kniaź), from the Holy Roman Empire.