Viozan | |
|---|---|
Saint-Pierre church in Viozan | |
![]() Location of Viozan | |
| Coordinates: 43°23′39″N 0°28′31″E / 43.3942°N 0.4753°E | |
| Country | France |
| Region | Occitania |
| Department | Gers |
| Arrondissement | Mirande |
| Canton | Mirande-Astarac |
| Government | |
| • Mayor (2020–2026) | Jean-François Abadie |
Area 1 | 6.76 km2 (2.61 sq mi) |
| Elevation | 229 m (751 ft) |
| Highest elevation | 285 m (935 ft) |
| Lowest elevation | 192 m (630 ft) |
| Population (2023) | 92 |
| • Density | 14/km2 (35/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 32466 /32300 |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Viozan (French pronunciation: [vjozɑ̃]; Gascon: Viosan) is a commune in the Gers department in southwestern France.

The Petite Baïse flows north through the eastern part of the commune, crosses the village and forms part of the commune's northeastern border.
| Year | Pop. | ±% p.a. |
|---|---|---|
| 1968 | 131 | — |
| 1975 | 130 | −0.11% |
| 1982 | 134 | +0.43% |
| 1990 | 118 | −1.58% |
| 1999 | 114 | −0.38% |
| 2007 | 121 | +0.75% |
| 2012 | 101 | −3.55% |
| 2017 | 113 | +2.27% |
| 2023 | 92 | −3.37% |
| Source: INSEE | ||