Jean Baptiste van Merlen
| Jean Baptiste van Merlen Baron de l'Empire | |
|---|---|
| Born | 15 April 1773 Antwerp, Austrian Netherlands | 
| Died | 18 June 1815 (aged 42) Waterloo | 
| Buried | |
| Allegiance | United Belgian States French Republic Batavian Republic Kingdom of Holland French Empire United Kingdom of the Netherlands | 
| Service | Cavalry | 
| Years of service | 1788–1815 | 
| Battles / wars | French Revolutionary Wars Napoleonic Wars | 
| Awards | Knight of the Order of the Union Knight of the Order of the Reunion Officer of the Legion of Honour | 
Major General Jean Baptiste Baron van Merlen (11 May 1772 – 18 June 1815) (also spelt Joannes Baptista Baron van Merlen) was an army officer born in the Austrian Netherlands who, following the varied fortunes of his homeland, fought on both sides during the French Revolutionary and Napoleonic Wars. Fighting in a series of campaigns in the Netherlands, Germany and Spain, he played an important part in the battles of Quatre Bras and Waterloo, where he was killed in action.