| Official Name: | Bellabeg |
| Gaelic Name: | Am Baile Beag |
| Country: | Scotland |
| Coordinates: | 57.1991°N -3.0658°W |
| Unitary Scotland: | Aberdeenshire |
| Lieutenancy Scotland: | Aberdeenshire |
| Static Image Name: | Bellabeg Aberdeenshire Sign.jpg |
| Static Image Caption: | Bellabeg |
| Os Grid Reference: | NJ353130 |
| Postcode District: | AB36 |
| Postcode Area: | AB |
| Post Town: | STRATHDON |
| Constituency Westminster: | West Aberdeenshire and Kincardine |
| Constituency Scottish Parliament: | Aberdeenshire West |
Bellabeg (an anglicisation of Scottish Gaelic: Am Baile Beag, 'the small farmtown') is a small roadside settlement in Strathdon, Aberdeenshire, Scotland. Amenities in Bellabeg include a Spar shop, a village hall, a green where the Highland Games are held, and the road to Lost with the famous signs pointing to "Lost".
Bellabeg lies on the north side of the River Don opposite the village of Strathdon.