| Bourdonnay | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Bourdonnay (Moselle).svg |
| Arrondissement: | Sarrebourg-Château-Salins |
| Canton: | Le Saulnois |
| Insee: | 57099 |
| Postal Code: | 57810 |
| Mayor: | Armelle Barbier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Saulnois |
| Coordinates: | 48.7203°N 6.7297°W |
| Elevation M: | 320 |
| Elevation Min M: | 217 |
| Elevation Max M: | 283 |
| Area Km2: | 17.4 |
Bourdonnay (pronounced as /fr/; de|Bortenach) is a commune in the Moselle department in Grand Est in northeastern France.
The commune is part of the Lorraine Regional Natural Park.
The Canal des Salines rises in the municipality and flows into the Seille, on the border with Marsal and Moyenvic, after passing through eight municipalities.
Previous Names:[2] Bordoneis (1175), Portenach (14th century), Bortnach (1455–1469), Bortnachen (1460), Borthenachen (1461).
This former seigneury of the Counts of Réchicourt depended on the Bishopric of Metz. The village was completely destroyed during the Thirty Years' War and was not rebuilt until the beginning of the 18th century.