| Official Name: | Louise-Marie |
| Settlement Type: | Hamlet |
| Pushpin Map: | Belgium |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Belgium |
| Pushpin Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Type2: | Province |
| Subdivision Type3: | Municipality |
| Subdivision Name: |  |
| Subdivision Name1: | Flemish Region |
| Subdivision Name2: | East Flanders |
| Subdivision Name3: | Ronse Maarkedal |
| Area Total Km2: | 3.29 |
| Population As Of: | 2021 |
| Population Footnotes: | [1] |
| Population Total: | 445 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Coordinates: | 50.7717°N 3.6444°W |
Louise-Marie is a hamlet partly belonging to the municipality of Ronse and partly to the municipality of Maarkedal. It is located in the Flemish Ardennes, the southern part of the province of East Flanders, Belgium.
The parish dates from the early 19th century. At first plans to create a proper village with a church were postponed.[2] The plans were revived in 1845, but no longer as an independent municipality.[3]
The hamlet Louise-Marie was officially established in 1850, and was named after the first queen of Belgium, Louise-Marie d'Orleans, who died in the same year.[4]
A dominating feature of the hamlet is the Saint Leonard Institute. The institute was established in 1902 as a sanatorium by the Sisters of Mercy of Ronse. It is currently in use as a retirement home.[5]