Jean-Sylvain Van de Weyer was a British–Belgian politician who served as the Belgian Minister at the Court of St. James's, effectively the ambassador to the United Kingdom, and briefly, as the prime minister of Belgium, all under King Leopold I.
- Occupation
- lawyer, politician, librarian, jurist
- Position held
- Prime Minister of Belgium, Minister of Foreign Affairs in Belgium
- Citizenship
- Belgium
- Born
- January 19, 1802
- Died
- May 23, 1874, 1874