The Ministry of Foreign Affairs of the Republic of Lithuania (Lithuanian: Lietuvos Respublikos užsienio reikalų ministerija) is a governmental body of the Republic of Lithuania that shapes the national policy, and organises, coordinates, and controls its enforcement in the following areas: foreign affairs and security policy: international relations, economic security, foreign trade, protection of the rights and interests of the Republic of Lithuania and its persons and entities abroad; coordination of European Union membership; representing the Republic of Lithuania abroad diplomatic and consular relations, diplomatic service, Lithuanian national and diplomatic protocol, international relations; the policy of cooperation of the Republic of Lithuania; strengthening of expat connections with Lithuania.

He is appointed and revoked by the President of the Republic of Lithuania by motion from the Prime Minister.

The foreign minister supervises the Ministry, deals with matters that lay within its sphere of competence, signs international agreements, ensures the enforcement of regulations the Ministry is tasked to oversee, files bills, ensures the execution of orders from the Government and the Prime Minister of the Republic of Lithuania, approves Strategic Planning Methodology, issues annual reports, coordinates and controls the work of administrational departments of the Ministry, as well as the activities of diplomatic missions, consular establishments and offices of the Republic of Lithuania to international organizations, file motions to the President of the Republic of Lithuania to award the diplomatic ranks of ambassador extraordinary and plenipotentiary of the Republic of Lithuania, envoy extraordinary of the Republic of Lithuania, and minister plenipotentiary of the Republic of Lithuania, and to the Government of the Republic of Lithuania, to appoint or recall diplomatic representatives (ambassadors extraordinary and plenipotentiary), defines the areas of activity for vice-ministers, and areas of cooperation for the Ministry chancellor.

They organise and control execution of orders, the drafting and approval of draft regulations, and represent the minister by assignment, presenting the minister's political attitudes and decisions to the public.

The chancellor coordinates and controls the activities of the Ministry's administrative departments, ensures that financial and intellectual resources, assets and information are used optimally to achieve the Ministry's strategic operating goals and objectives.