Bionaz
| Bionaz | |
|---|---|
| Comune di Bionaz Commune de Bionaz | |
| Location of the commune within the Aosta Valley region | |
| Location of Bionaz | |
| Coordinates: 45°52′N 7°25′E / 45.867°N 7.417°E | |
| Country | Italy | 
| Region | Aosta Valley | 
| Province | none | 
| Frazioni | See Villages, hamlets and other centres | 
| Government | |
| • Mayor | Armando Chentre (elected 2005-05-09) | 
| Area | |
|  • Total | 142.82 km2 (55.14 sq mi) | 
| Elevation | 1,606 m (5,269 ft) | 
| Population  (31 December 2023) | |
|  • Total | 221 | 
| • Density | 1.5/km2 (4.0/sq mi) | 
| Demonym | Bionassins | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| Postal code | 11010 | 
| Dialing code | 0165 | 
| Patron saint | Saint Margaret | 
| Saint day | 20 July | 
| Website | Official website | 
Bionaz (French: [bjɔna] ⓘ; Valdôtain: Bioun-a; Biona from 1939 to 1946) is a comune sparso which extends over 143 square kilometres (55 sq mi) of the North-Eastern Valpelline area of the Aosta Valley region of northwest Italy. The population of about 240 is dispersed among 20 or more small alpine villages and hamlets including Plan-de-Veyne, which is the main centre and the capoluogo (locally and officially also chef-lieu, in French). The commune belongs to the Unité des communes valdôtaines du Grand-Combin.