Battle of San Lorenzo de la Muga
Part of the War of the Pyrenees
Date 19 May 1794 Location Sant Llorenç de la Muga, Catalonia, Spain Result French victory
Belligerents
Republican France	Spain Portugal
Commanders and leaders
Jacques Dugommier Pierre Augereau	Conde de la Unión John Forbes
Strength
6,000	15,000
Casualties and losses
Unknown	Unknown

The First Battle of Sant Llorenç de la Muga (Catalan) or Spanish: San Lorenzo de la Muga) (19 May 1794) between a Spanish army commanded by the Luis Firmín de Carvajal, Conde de la Unión and a French army led by Jacques François Dugommier. Two weeks earlier, the French had driven the Spanish army from French territory in the Second Battle of Boulou. Pierre Augereau's division was separated from the main body of Dugommier's army and La Unión hoped to take advantage of its isolation. The Spanish mounted an overly complex attack on Sant Llorenç de la Muga that Augereau's French division repulsed.

• Charavay, Jacques (1893). "Les généraux morts pour la patrie: première série 1792-1804" (in French). Paris: Société de l'histoire de la Révolution française. Retrieved 19 March 2024.
• Cust, Edward (1859). "Annals of the Wars: 1783–1795, Volume 4". London: Mitchell's Military Library. Retrieved 19 March 2024.
• Nafziger, George (2011). "Abstract Return, French Army, Battle of Boulou, 30 April [1794]". Fort Leavenworth, KS: United States Army Combined Arms Center: Nafziger Collection of Orders of Battle. Retrieved 19 March 2024.
• Phipps, Ramsay Weston (2011) [1931]. The Armies of the First French Republic and the Rise of the Marshals of Napoleon I: The Armies in the West 1793 to 1797 and The Armies in the South 1793 to March 1796. Vol. 3. Pickle Partners Publishing. ISBN 978-1-908692-26-9.

42°18′57″N 2°55′49″E / 42.3158°N 2.9303°E / 42.3158; 2.9303