特里尔，又译堤雅（德语：Trier，法语：Trèves），德国最古老的城市，位于莱茵兰-普法尔茨州西南部，摩泽尔河岸，靠近卢森堡边境。开端口于公元前16年，曾为罗马帝国四帝共治制时期西部恺撒（副皇帝）的驻节地。特里尔不是唯一声称最古老的德国城市，但它作为“城市”有超过两千年的历史，而不是作为殖民地或者军队驻扎地，这在德国确实是最古老的。

特里尔位于莱茵兰-普法尔茨州西南部的摩泽尔河谷中，两岸是低缓的红砂岩山丘，布满葡萄田，属于著名的摩泽尔-萨尔-乌沃（Mosel-Saar-Ruwer）葡萄酒产区。

Trier (German pronunciation:[ˈtʀiːɐ̯]; Luxembourgish:Tréier), formerly known in English as Treves (French:Trèves, IPA: [tʁɛv]), is a city in Germany on the banks of the Moselle. Trier lies in a valley between low vine-covered hills of red sandstone in the west of the state of Rhineland-Palatinate, near the border with Luxembourg and within the important Moselle wine region. Founded by the Celts presumably in the late-4th century BC as Treuorum, it was later conquered by the Romans in the late-1st century BC and renamed Trevorum or Augusta Treverorum (Latin for "The City of Augustus among the Treveri"), Trier may be the oldest city in Germany. It is also the oldest seat of a bishop north of the Alps. In the Middle Ages, the Archbishop-Elector of Trier was an important prince of the church, as the archbishop-electorate controlled land from the French border to the Rhine. The Archbishop-Elector also had great significance as one of the seven electors of the Holy Roman Empire.