| Sydere Creek | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the creek in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Cochrane |
| Subdivision Type5: | Part or municipality |
| Subdivision Name5: | Unorganized North Cochrane District, Fauquier-Strickland |
| Source1: | Sydere Lake |
| Source1 Location: | Sydere Township, Unorganized North Cochrane District |
| Source1 Elevation: | 268m (879feet)[1] |
| Mouth: | Poplar Rapids River |
| Mouth Location: | Fauquier-Strickland |
| Mouth Coordinates: | 49.2186°N -81.8128°W[2] |
| Mouth Elevation: | 227m (745feet) |
| River System: | James Bay drainage basin |
Sydere Creek is a stream in the municipality of Fauquier-Strickland and Unorganized North Cochrane District, Cochrane District in Northeastern Ontario, Canada.[3] [4] [5] [6] It is in the James Bay drainage basin and is a left tributary of the Poplar Rapids River.
The creek begins at a Sydere Lake in geographic Sydere Township in Unorganized North Cochrane District and flows northwest, turns northeast, passes into the municipality of Fauquier-Strickland, and reaches its mouth at the Poplar Rapids River, just short of that river's entry to the south shore of Departure Lake. The Poplar Rapids River flows via the Mattagami River and the Moose River to James Bay.