Las Piedras is a city in the Canelones Department of Uruguay. It is located on the east side of Route 5, 2.5 kilometers (1.6 mi) north of the border with Montevideo Department. Bordering La Paz to the south and Montevideo to the southeast, it belongs to the wider metropolitan area of Montevideo. The stream Arroyo de Las Piedras flows by the city.
Las Piedras is also the name of the municipality to which the city belongs