Mongolia's embassy in Brussels, the Kingdom of Belgium, concurrently accredited to Luxembourg and the Netherlands, and also Mongolia's mission to the European Union. Mongolia's diplomatic missions abroad list records the post at Avenue Besme 18, 1190 Forest Bruxelles, with L.Bold as chief of mission (Consul.mn, diplomatic missions abroad list, dated 1 September 2024). Reporting gives the holder's full name as Bold Luvsanvandan (also rendered Luvsanvandangiin Bold), who presented his letters of credence to King Philippe on 24 February 2022 (Consul.mn, 24 February 2022); his profile records his earlier service as Minister of Foreign Affairs from 2012 to 2014 and Minister of Defence from 2008 to 2012.
Mongolia and Belgium established diplomatic relations on 8 July 1971 (Foreign relations of Mongolia). The first political consultations between the two foreign ministries took place in Brussels on 24 June 2025, where the sides discussed celebrating the 55th anniversary of diplomatic relations in 2026 (Ministry of Foreign Affairs of Mongolia, reported 24 June 2025).