| Elvillar/Bilar | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Basque Country#Spain |
| Pushpin Map Caption: | Location of Elvillar/Bilar within the Basque Country##Location of Elvillar/Bilar within Spain |
| Coordinates: | 42.5667°N -34°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Álava |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Rioja Alavesa |
| Leader Title: | Mayor |
| Leader Name: | Gerardo Olano Medrano |
| Area Total Km2: | 17.50 |
| Elevation Footnotes: | (AMSL) |
| Elevation M: | 583 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST (GMT +2) |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 01309 |
Elvillar in Spanish or Bilar in Basque is a town and municipality located in the province of Álava, in the Basque Country, northern Spain.