Come By Chance is a town on the Avalon Peninsula in Newfoundland and Labrador, Canada. It is in Division 1 on Placentia Bay.
Located in this town is Newfoundland's only oil refinery, the Come By Chance Refinery operated by North Atlantic Refining Company, which has a capacity of 115,000 barrels per day (18,300 m3/d).
According to the 2001 Statistics Canada Census:
- Population: 265
- % Change (1996-2001): -11.7
- Dwellings: 116
- Area (km².): 41.7
- Density (persons per km².): 6.4
Coordinates: 47°51′00″N 53°59′00″W / 47.85000°N 53.98333°W