Merrill Creek is a creek in the Moira River and Lake Ontario drainage basins in Hastings and Lennox and Addington Counties, Ontario, Canada.

Course

Merrill Creek begins at an unnamed lake in Addington Highlands, Lennox and Addington County at an elevation of 368 m and flows east and then south, through Todd Lakes, to reach Merrill Lake at an elevation of 338 m. It heads south into Little Merrill Lake, then southwest to Whitefish Lake. Leaving the lake, the creek passes into the Cashel portion of Tudor and Cashel, Hastings County, then Tweed, Hastings County, and flows southwest to reach its mouth at Partridge Creek at an elevation of 331 m. Partridge Creek flows via the Skootamatta River and Moira River to the Bay of Quinte on Lake Ontario at Belleville.