| Haynan Creek | |
| Name Other: | Tributary to Cross Creek |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Haynan Creek mouth |
| Pushpin Map Alt: | Map of Haynan Creek mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Length: | 1.48miles[1] |
| Discharge1 Location: | Cross Creek |
| Discharge1 Avg: | 1.7cuft/s at mouth with Cross Creek[2] |
| Source1: | Hanen Run divide |
| Source1 Location: | about 1 mile west-northwest of West Middletown, Pennsylvania |
| Source1 Coordinates: | 40.2469°N -80.4433°W[3] |
| Source1 Elevation: | 1080feet[4] |
| Mouth: | Cross Creek |
| Mouth Location: | about 1 mile southeast of Avella, Pennsylvania |
| Mouth Coordinates: | 40.2675°N -80.4417°W |
| Mouth Elevation: | 932feet[5] |
| Progression: | Cross Creek → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Ohio River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Seminary Road |
Haynan Creek is a 1.48miles long 1st order tributary to Cross Creek in Washington County, Pennsylvania. This is the only stream of this name in the United States.[3]
Haynan Creek rises about 1 mile west-northwest of West Middletown, Pennsylvania, in Washington County and then flows north to join Cross Creek about 1 mile southeast of Avella.[5]
Haynan Creek drains of area, receives about 40.1 in/year of precipitation, has a wetness index of 317.57, and is about 66% forested.[2]