| O Valadouro | |
| 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: | A Mariña Central |
| Population Demonym: | valadourés, -a |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 27... |
| Area Code Type: | Dialing code |
| Leader Title: | Alcalde |
| Leader Name: | Edmundo Maseda Maseda |
| Leader Party: | PSdeG |
O Valadouro is a municipality in the province of Lugo, in the autonomous community of Galicia, Spain. It belongs to the comarca of A Mariña Central. Its capital is the town of Ferreira. In 2011, it had 2,180 inhabitants according to the INE.
The site of Chao da Cruz is in the plain of Cabalar-A Veiga Blonde, at the foot of the Box O Cadramón. At this site about two thousand mounting tools made of chips of quartz, quartz and rock crystal were found along with prisms and an abundance of remains small in size and barely retouched.