Cuchillas is a rural barrio in the municipality of Corozal, Puerto Rico.

[3][4][5] Cuchillas was in Spain's gazetteers[6] until Puerto Rico was ceded by Spain in the aftermath of the Spanish–American War under the terms of the Treaty of Paris of 1898 and became an unincorporated territory of the United States.

In 1899, the United States Department of War conducted a census of Puerto Rico finding that the population of Cuchillas barrio was 585.

The Río Grande de Manatí runs along the southern border of Cuchillas, between Cuchillas and Magueyes and intersects with the Orocovis River.

[9] Barrios (which are now like minor civil divisions)[15] in turn are further subdivided into smaller local populated place areas/units called sectores (sectors in English).