The Place Saint-Lambert (French pronunciation: [plas sɛ̃ lɑ̃bɛʁ]) is a major square in the centre of Liège, Belgium.

Remains of the foundations of the cathedral have been conserved, and are on display at the Archéoforum, under the square.

[1] The largest public building on the square is the former Prince-Bishops' Palace, which now houses the Palace of Justice of Liège and the Provincial Palace, i.e. the government building of Liège Province.

There is a large bus station in the lower part of the square, which serves as the local transport hub for the city.

On 13 December 2011, a murder–suicide attack took place in the square, in which 6 people were killed and 125 were injured.