| Official Name: | Kareby |
| Pushpin Map: | Sweden Västra Götaland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Kungälv Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Västra Götaland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bohuslän |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.27 |
| Population As Of: | 31 December 2010 |
| Population Total: | 292 |
| Population Density Km2: | 1072 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 57.9167°N 65°W |
Kareby is a locality situated in Kungälv Municipality, Västra Götaland County, Sweden. It had 292 inhabitants in 2010. Kareby IS have four sports on the programme and is reigning Swedish bandy champions for women (2016).