| Conflict: | Battle of Paso Cuello |
| Partof: | the Portuguese conquest of the Banda Oriental |
| Date: | 19 March 1817 |
| Place: | Paso Cuello, border region between Canelones and Florida, Banda Oriental (modern-day Uruguay) |
| Result: | Tactical Luso-Brazilian victory Strategic victory of the Federal League
|
| Combatant1: | United Kingdom of Portugal, Brazil and the Algarves |
| Combatant2: | Federal League |
| Commander1: | Carlos F. Lecor |
| Commander2: | Miguel Barreiro Fructuoso Rivera |
| Strength1: | Uruguayan sources: 1,700 5 cannons |
| Strength2: | Uruguayan sources: 400-1,300 1-2 cannons Lecor's report: 1,400-1,500 4 cannons |
| Casualties1: | Uruguayan sources: 50 killed and wounded |
| Casualties2: | Uruguayan sources: 100 killed and wounded Lecor's report: 50-60 killed 40 captured |
The Battle of Paso Cuello took place on 19 March 1817 between forces commanded by Carlos Frederico Lecor, at that time Baron of Laguna, and artiguist forces, that is, followers of the caudillo José Gervasio Artigas, led by Fructuoso Rivera and Miguel Barreiro at Paso Cuello, a small stream that divides the modern day Uruguayan departments of Canelones and Florida.
Lecor, that had already taken Montevideo by that time, left the city a few days earlier with his forces to attack the oriental encampment at Paso Cuello, where he believed Artigas had made his base.