兰弗朗克（Lanfranc，c.1005年－1089年），生于意大利帕维亚，为伦巴底人，天主教神父，曾任坎特伯雷大主教。

兰弗朗克生于意大利，原先在北意大利接受人文教育。但因为不明原因，他决定越过阿尔卑斯山，至法国与诺曼第求学。在1039年前后，他成为阿夫朗什（Avranches）教会学校的教师。1042年，他加入新成立的贝克修道院（Bec Abbey），并在此静修，直到1045年之前，都过着隐居的生活。

修道院长伊尔林（Herluin）要求他在修道院之中为修士开设课程。

Lanfranc (Latin:Lanfrancus; Italian:Lanfranco; 1005 x 1010 at Pavia — 24 May 1089 at Canterbury) was a celebrated Italian jurist who renounced his career to become a Benedictine monk at Bec in Normandy. He served successively as prior of Bec Abbey and abbot of St Stephen in Normandy and then as archbishop of Canterbury in England, following its Conquest by William the Bastard. He is also variously known as Lanfranc of Pavia (Italian:Lanfranco di Pavia), Lanfranc of Bec (French:Lanfranc du Bec), and Lanfranc of Canterbury (Latin:Lanfrancus Cantuariensis).