| Millaro de la Tercia | |
| Official Name: | Millaró de la Tercia |
| Settlement Type: | Minor local entity |
| Pushpin Map: | Spain Province of León#Spain Castile and León#Spain |
| Pushpin Label: | Millaro de la Tercia |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Province of León |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Villamanín |
| Population Total: | 13 |
| Coordinates: | 42.9786°N -5.6456°W[1] |
| Elevation M: | 1379 |
| Postal Code Type: | Postal code |
Millaro de la Tercia or Millaró de la Tercia is a locality and minor local entity located in the municipality of Villamanín, in León province and the region of La Tercia del Camino, in the Autonomous Community of Castile and León, Spain.[2] As of 2020, it has a population of 13.[3]
It is located on the bed of Arroyo de Millaró, a tributary of the Bernesga River.
The locality once belonged to the old Council of the Tercia del Camino.
Millaro de la Tercia is located 54km north of León, Spain.
Millaro de la Tercia borders the Asturias to the north, Piedrafita and Piornedo to the northeast, Campo and Villanueva de Pontedo to the east, Carmenes to the southeast, Barrio de la Tercia to the south, Golpejar de la Tercia and Villanueva de la Tercia to the southwest, Camplongo de la Tercia to the west, and Tonín de Arbas to the northwest.