| Official Name: | Monacillo Urbano |
| Native Name Lang: | es |
| Settlement Type: | Barrio |
| Coordinates: | 18.3801°N -66.0812°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Commonwealth |
| Subdivision Name: |  Puerto Rico |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | San Juan |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 3.23 |
| Area Land Sq Mi: | 3.23 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2010 |
| Population Note: | 2010 census |
| Population Total: | 22,342 |
| Population Density Sq Mi: | 6917.0 |
| Timezone: | AST |
| Utc Offset: | -4 |
| Elevation Ft: | 141 |
| Postal Code Type: | ZIP Code |
See main article: San Juan, Puerto Rico. Monacillo Urbano is one of 18 barrios in the municipality of San Juan, Puerto Rico. The barrio was originally part of Monacillo. In 2010, it had a population of 22,342 living in a land area of 3.23 square miles (8.68 km2). Monacillo Urbano is surrounded by Gobernador Piñero barrio to the north, El Cinco barrio to the east, Monacillo barrio to the south, and the municipality of Guaynabo to the west.[2]