Rainy Creek is a creek in the Moira River and Lake Ontario drainage basins in Addington Highlands, Lennox and Addington County, Ontario, Canada.

Course

Rainy Creek begins in an unnamed marsh at an elevation of 349 m, 1.2 km north of Grimsthorpe Lake on the sister tributary of the Skootamatta River, Partridge Creek. It flows south, then turns east for the rest of its run. The creek reaches Rainy Lake at an elevation of 325 m, and enters Bon Echo Provincial Park. The creek then reaches its mouth at the Skootamatta River at an elevation of 315 m, between Joeperry Lake and Pearson Lake and about 12.5 km northwest of the community of Cloyne.