| Type: | Formation |
| Period: | Cambrian |
| Region: | Newfoundland |
| Country: | Canada |
| Unitof: | Adeyton Group[1] |
| Underlies: | Smith Point Fm |
| Overlies: | Random Fm |
| Map: | Bonavista Formation map.svg |
The Bonavista Formation is an Early Cambrian formation which is exposed in outcrop in Newfoundland. The unit is dominated by red mudstone, with some purple-green mudstones, and the occasional interbedded nodular limestone. A gritty conglomerate is exposed at the base of the unit.[2]