Millhaven Creek
| Millhaven Creek ruisseau Millhaven  | |
|---|---|
| Location | |
| Country | Canada | 
| Province | Ontario | 
| Counties | |
| Municipalities | |
| Physical characteristics | |
| Source | Sydenham Lake | 
| • location | South Frontenac | 
| • coordinates | 44°16′42″N 81°06′04″W / 44.27833°N 81.10111°W | 
| • elevation | 130 m (430 ft) | 
| Mouth | Lake Ontario | 
 • location  | Loyalist | 
 • coordinates  | 44°11′37″N 76°44′25″W / 44.19361°N 76.74028°W | 
 • elevation  | 74.1 m (243 ft) | 
| Length | 56.6 km (35.2 mi) | 
| Basin size | 179 km2 (69 sq mi) | 
| Basin features | |
| Progression | Lake Ontario→ Saint Lawrence River→ Gulf of Saint Lawrence | 
| River system | Lake Ontario drainage basin | 
| Waterbodies | Odessa Lake | 
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. It is a tributary of Lake Ontario and is under the auspices of the Cataraqui Region Conservation Authority.