| Riotorto | |
| 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: | Meira |
| Area Footnotes: | [1] |
| Area Total Km2: | 66.33 |
| Population As Of: | 2023 |
| Population Footnotes: | [2] |
| Population Total: | 1200 |
| Population Demonym: | Riotortego, riotortense |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 27744 |
| Area Code Type: | Dialing code |
| Government Footnotes: | [3] |
| Leader Title: | Alcalde |
| Leader Name: | Clemente Iglesias González |
| Leader Party: | PPdeG |
Riotorto is a municipality in the province of Lugo, in the autonomous community of Galicia, Spain. It belongs to the comarca of Meira.