| Sant Boi de Lluçanès | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Catalonia |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 42.0653°N 2.1525°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Barcelona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Osona |
| Leader Title: | Mayor |
| Leader Name: | Josep Maria Masramon Falgueras (2015)[1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 19.5 |
| Population Density Km2: | auto |
Sant Boi de Lluçanès (in Catalan; Valencian pronounced as /ˈsam ˈboj ðə ʎusəˈnɛs/) is a municipality in the comarca of Osona in Catalonia, Spain.
Although the municipality lies within the natural region of Lluçanès, it voted in 2015 not to join a proposed new comarca of that name, but the plan was put on hold due to insufficient support.[3]