| Fly Creek | |
| Pushpin Map: | New York Adirondack Park#USA |
| Pushpin Map Caption: | Location of the mouth within New York |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | New York |
| Subdivision Type3: | Region |
| Subdivision Name3: | Central New York |
| Subdivision Type4: | Counties |
| Subdivision Name4: | Montgomery, Schoharie |
| Source1: | Unnamed swamp |
| Source1 Location: | North of Sloansville |
| Source1 Coordinates: | 42.7898°N -74.3351°W[1] |
| Source1 Elevation: | Approximately 1300feet |
| Mouth: | Schoharie Creek |
| Mouth Location: | South of Sloansville |
| Mouth Coordinates: | 42.7429°N -74.3257°W |
| Mouth Elevation: | 558feet |
| Progression: | Fly Creek → Schoharie Creek → Mohawk River → Hudson River → Upper New York Bay |
| Basin Size: | 22sqmi[2] |
Fly Creek is a river in Montgomery and Schoharie counties in the state of New York. It begins at an unnamed swamp north of Sloansville and flows into the Schoharie Creek south of Sloansville.
Water in Fly Creek is moderately healthy with an excellent habitat for aquatic life. Due to low levels of urban and commercial development, large wetland areas, and several small private forests the water quality is very good.[3]