The deputy prime minister of Luxembourg (Luxembourgish: Vize-Premierminister vu Lëtzebuerg, lit.

The deputy serves a vital function in Luxembourg's collegiate cabinet system, deputises for the prime minister when he is absent, represents his or her own political party, and holds other government positions.

The deputy prime minister has always been a leading politician from the junior coalition partner.

Since 1989, the title of Deputy Prime Minister has been an official one,[1] although the position had been unofficially known by that name since its creation.

From the position's creation until 1989, the deputy prime minister went by the title of Vice-President of the Government.