| Otter Creek | |
| Pushpin Map: | Canada Southern Ontario |
| Pushpin Map Caption: | Location of the mouth of Otter Creek in southern Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Central Ontario, Eastern Ontario |
| Subdivision Type4: | Counties |
| Subdivision Type5: | Municipalities |
| Source1: | Unnamed lake |
| Source1 Location: | Addington Highlands, Lennox and Addington County |
| Source1 Coordinates: | 44.6619°N -77.1214°W |
| Source1 Elevation: | 256m (840feet) |
| Source2: | Wallbridge Lake |
| Source2 Location: | Central Frontenac, Frontenac County |
| Source2 Coordinates: | 44.7056°N -76.9967°W |
| Source2 Elevation: | 212m (696feet) |
| Mouth: | Clare River |
| Mouth Location: | Tweed, Hastings County |
| Mouth Coordinates: | 44.4953°N -77.2264°W |
| Mouth Elevation: | 144m (472feet) |
| River System: | Great Lakes Basin |
Otter Creek is a creek in the Moira River and Lake Ontario drainage basins in Tweed, Hastings County, Addington Highlands, Lennox and Addington County and Central Frontenac, Frontenac County in Ontario, Canada.