Strasbourg Cathedral or the Cathedral of Our Lady of Strasbourg (French: Cathédrale Notre-Dame-de-Strasbourg, German: Liebfrauenmünster zu Straßburg) is a Roman Catholic cathedral in Strasbourg, France. Although considerable parts of it are still in Romanesque architecture, it is widely considered to be among the finest examples of high, or late, Gothic architecture. Erwin von Steinbach is credited for major contributions from 1277 to his death in 1318.

At 142 metres, it was the world's tallest building from 1647 to 1874. It remained the tallest church in the world until 1880, when it was surpassed firstly by Cologne Cathedral and then the 161 metre Ulm Münster. Today it is the sixth-tallest church in the world.

Described by Victor Hugo as a "gigantic and delicate marvel", the cathedral is visible far across the plains of Alsace and can be seen from as far off as the Vosges mountains or the Black Forest on the other side of the Rhine.