The Ministry of Foreign Affairs (French: Ministère des Affaires étrangères, MAE) is a ministry of the government of Luxembourg, headquartered in the Hôtel Saint Maximin in Luxembourg City.
It is headed by the Minister for Foreign Affairs (French: Ministre des Affaires étrangères), a position in the Luxembourgian cabinet. The Minister for Foreign Affairs is responsible for determining Luxembourg's foreign policy and representing the government abroad.
The position of Minister for Foreign Affairs has been in continuous existence since the promulgation of Luxembourg's first constitution, in 1848. Until 1937, the position was held concurrently by the Prime Minister, thus ridding it of any true significance as an office. However, in 1937, Joseph Bech resigned as Prime Minister, but was immediately reappointed as Minister for Foreign Affairs upon Pierre Dupong's premiership. When Bech became Prime Minister again, in 1953, the two jobs were united once more. Over the next twenty-six years, the jobs were separated and united another two times. However, since 1979, the two positions have been remained in separate hands.
Since 24 March 1936, the title of Minister for Foreign Affairs has been an official one, although the position had been unofficially known by that name since its creation. From the position's creation until 28 November 1857, the Minister went by the title of Administrator-General. From 1857 until 1936, the Minister went by the title of Director-General.