塞莱斯廷四世，又译雷定四世（拉丁文：Caelestinus IV，？－1241年11月10日），原名Goffredo Castiglioni，于1241年10月25日至同年11月10日为罗马教宗，是天主教历史上在位短时间的教皇之一。

塞莱斯廷四世出生于意大利米兰市，教皇乌尔巴诺三世的私生子，在萨伏依地区成为一名僧侣，并在那里写作苏格兰历史。当选教皇后与神圣罗马帝国皇帝腓特烈二世对立，在位仅仅十七日，逝世后于葬于梵蒂冈。

Pope Celestine IV (Latin:Caelestinus IV; died 10 November 1241), born Goffredo da Castiglione, was Pope from 25 October 1241 to his death on 10 November of the same year.

Born in Milan, Goffredo or Godfrey is often referred to as son of a sister of Pope Urban III, but this claim is without foundation. Nothing is known of his early life until he became chancellor of the church of Milan (perhaps as early as 1219, certainly in 1223–27). Pope Gregory IX made him a cardinal on 18 September 1227 with the diocese and benefice of San Marco, and in 1228–29 sent him as legate in Lombardy and Tuscany, where the cities and communes had generally remained true to the Hohenstaufen emperor, Frederick II. He was dispatched in an attempt to bring these territories around to the papal side, but without success. In 1238 he was made cardinal bishop of Sabina.