The Palace of Tau in Reims, France, was the palace of the Archbishop of Reims. It is associated with the kings of France, whose coronation was held in the nearby cathedral of Notre-Dame de Reims and the following coronation banquet in the palace itself. Because of its historical importance for the French monarchy, the Palace of Tau was inscribed on the UNESCO World Heritage List in 1991. Today, it serves to host cultural events for the city of Reims. In recent years it has been the setting for Sciences Po Paris's RIMUN association's annual gala.

Reims is the most populous city in the French department of Marne, and the 12th most populous city in France. The city lies 129 km (80 mi) northeast of Paris on the Vesle river, a tributary of the Aisne.