| Outeiro de Rei | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Lugo |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Lugo |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 27730 |
| Area Code Type: | Dialing code |
| Leader Title: | Alcalde |
| Leader Name: | José Pardo Lombao |
| Leader Party: | PP |
Outeiro de Rei is a municipality located in the province of Lugo, in the autonomous community of Galicia, Spain. It belongs to the comarca of Lugo. In 2016, it had a population of 5047 according to the INE.
The Galician word outeiro is derived from Latin altarium, meaning a high or elevated territory.[1] De Rei means "of the king" in Galician, and can be found as a suffix in multiple other toponyms of Galicia.