MOFA (Ministry of Foreign Affairs) denotes the executive department in most states that conducts diplomacy, manages embassies and consulates, negotiates treaties, and coordinates foreign policy with other ministries. The acronym is most commonly associated with East Asian governments — Japan's Gaimushō, South Korea's MOFA, Taiwan's MOFA, and the People's Republic of China's MFA (sometimes rendered MOFA) — but is used generically across diplomatic correspondence and scholarly literature.
A MOFA typically performs four core functions: (1) representation, by maintaining diplomatic missions abroad and receiving foreign envoys; (2) negotiation, leading bilateral and multilateral treaty work and instructing delegations at bodies such as the UN; (3) reporting and analysis, producing political and economic intelligence from posts abroad for the head of government; and (4) consular protection, assisting nationals overseas with passports, visas, evacuations, and detention cases.
Institutional structure usually mirrors these tasks: regional/geographic bureaus, functional bureaus (treaties, international organizations, economic affairs, public diplomacy), and a consular service. Career diplomats rotate between headquarters and overseas posts, and most MOFAs operate a formal diplomatic academy or examination route for entry.
MOFAs are not always the sole foreign-policy actor. In larger states, defense ministries, intelligence services, trade ministries, and heads of state often run parallel tracks — sometimes producing friction over message discipline. The rise of summit diplomacy, leader-level diplomacy via direct phone contact, and economic statecraft has visibly reduced MOFAs' monopoly on external relations since the 1990s.
For researchers, MOFA websites are primary sources for official statements, white papers (e.g. Japan's annual Diplomatic Bluebook), treaty texts, and démarche records. Citing the issuing MOFA and date is standard practice in IR scholarship and policy memos.
Example
In August 2022, Japan's MOFA summoned the Chinese ambassador to protest PLA missile launches that landed inside Japan's exclusive economic zone near Yonaguni.