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| Regniowez | |
|---|---|
| The church in Regniowez | |
| Coordinates: 49°56′20″N4°25′52″E / 49.9389°N 4.4311°E | |
| Country | France | 
| Region | Grand Est | 
| Department | Ardennes | 
| Arrondissement | Charleville-Mézières | 
| Canton | Rocroi | 
| Government | |
| • Mayor (2020–2026) | Jean-Yves Lagneaux [1] | 
| Area 1 | 18.27 km2 (7.05 sq mi) | 
| Population  (2022) [2]  | 377 | 
| • Density | 21/km2 (53/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code |  08355 /08230 | 
| Elevation | 350 m (1,150 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Regniowez is a commune in the Ardennes department in northern France.
The Sormonne forms most of the commune's southern border. Couvin and Chimay, two Belgian municipalities, form its northern border.
| Year | Pop. | ±% | 
|---|---|---|
| 1962 | 272 | — | 
| 1968 | 344 | +26.5% | 
| 1975 | 355 | +3.2% | 
| 1982 | 357 | +0.6% | 
| 1990 | 366 | +2.5% | 
| 1999 | 396 | +8.2% | 
| 2008 | 386 | −2.5% |