Millhaven Creek (French: ruisseau Millhaven) is a stream in the municipalities of Loyalist, Lennox and Addington County, and South Frontenac, Frontenac County, and the single-tier municipality of Kingston in eastern Ontario, Canada.

[1][2][6][7][8] It is a tributary of Lake Ontario and is under the auspices of the Cataraqui Region Conservation Authority.

It leaves the lake at the southwest continuing to head southwest, flows under Frontenac County Road 38 at the community of Murvale (where the sign on the road reads "Murvale Creek"), enters the northwest corner of Kingston, and reaches the northeast end of Odessa Lake.

It flows under Ontario Highway 401 at the community of Odessa, passes over Millhaven Dam,[10] continues southwest through the communities of Asselstine and Link's Corners, then turns abruptly southeast then south, passes under Ontario Highway 33 at the community of Millhaven and reaches Lake Ontario at an elevation of 74.1 metres (243 ft).

[4][1][2][6] The Purdy water access point, for launching canoes and other small craft, is located on the creek at Murvale.