| Official Name: | Björkvik |
| Pushpin Map: | Sweden Södermanland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Katrineholm Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Södermanland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Södermanland |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.96 |
| Population As Of: | 31 December 2020 |
| Population Footnotes: | [2] |
| Population Total: | 518 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 58.8333°N 47°W |
| Blank Name: | Climate |
| Blank Info: | Dfb |
Björkvik is a locality situated in Katrineholm Municipality, Södermanland County, Sweden with 492 inhabitants in 2010. It is primarily a farming community interspersed by forests and lakes, with some larger estates dating back to the 17th century.