Lambert Schaus (18 January 1908[1] – 10 August 1976[2]) was a Luxembourgish politician, jurist, and diplomat.

Prior to the Second World War, Schaus was active in local politics as a Luxembourg town councillor.

When Schaus refused to support the occupation of Luxembourg by Germany, he was arrested in 1941 by the Gestapo and interned in a labour camp where he worked to build motorways.

On returning to Luxembourg after the war, he became economy and army minister in the government of Pierre Dupong in August 1946,[3] representing the CSV party.

He was responsible for the difficult reconstruction and for the first standing army of the Grand Duchy.