| Marckolsheim | |
| Native Name: | Màrkelse |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marckolsheim.svg |
| Arrondissement: | Sélestat-Erstein |
| Canton: | Sélestat |
| Insee: | 67281 |
| Postal Code: | 67390 |
| Mayor: | Frédéric Pfliegersdoerffer[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Ried de Marckolsheim |
| Coordinates: | 48.16°N 7.54°W |
| Elevation Min M: | 170 |
| Elevation Max M: | 184 |
| Area Km2: | 33.36 |
Marckolsheim (pronounced as /fr/;) is a commune in the Bas-Rhin department in Alsace in north-eastern France.[2]
On the eastern edge of the town the Casemate de Marckolsheim Sud, a Maginot Line fortification left over from the Second World War, has been converted into a small museum. Approximately 3 kilometres to the east the Rhine has been dammed and a hydro-electric power station installed.