扬·胡斯（捷克语：Jan Hus，1371年捷克胡西内茨 - 1415年7月6日德国康士坦兹），或译胡司，捷克宗教思想家、哲学家、改革家，曾任布拉格查理大学校长。胡斯思想上受到威克里夫很深的影响，是宗教改革的先驱，认为一切应该以《圣经》为唯一的依归，否定教皇的权威性，更是反对赎罪券，故被天主教视为异端，将他处以破门律，又将他诱捕烧死。他的追随者被称为胡斯信徒，胡斯信徒导致了胡斯战争的爆发。

扬·胡斯因殉道留名于世，也是捷克民族主义的标竿，1999年，天主教会正式为胡斯之死道歉。

Jan Hus (/hʊs/; Czech:[ˈjan ˈɦus]; c. 1372 – 6 July 1415)[Fudge, Thomas A. “ ‘Infoelix hus’: The Rehabilitation of a Medieval Heretic.” In Fides et Historia,; Winter/Spring 1998. 30,1; ProQuest Central pg. 57-73. New Zealand: University of Canterbury, 1998.] , often referred to in English as John Hus or John Huss, was a Czech priest, philosopher, early Christian reformer and Master at Charles University in Prague. After John Wycliffe, the theorist of ecclesiastical Reformation, Hus is considered the first Church reformer, as he lived before Luther, Calvin and Zwingli.