| Alexanders Run | |
| Name Other: | Tributary to Harmon Creek |
| Map Size: | 300 |
| Pushpin Map: | USA West Virginia#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Alexanders Run mouth |
| Pushpin Map Alt: | Map of Alexanders Run mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | West Virginia |
| Subdivision Type3: | County |
| Subdivision Name3: | Brooke Hancock |
| Subdivision Type4: | City |
| Subdivision Name4: | Weirton Heights |
| Length: | 3.69miles[1] |
| Discharge1 Location: | Harmons Creek |
| Discharge1 Avg: | 3.42cuft/s at mouth with Harmon Creek[2] |
| Source1: | unnamed tributary to Kings Creek divide |
| Source1 Location: | Weirton Heights, West Virginia |
| Source1 Coordinates: | 40.4083°N -80.5531°W[3] |
| Source1 Elevation: | 1.09feet[4] |
| Mouth: | Harmon Creek |
| Mouth Location: | about 1 mile northwest of Colliers, West Virginia |
| Mouth Coordinates: | 40.375°N -80.5261°W |
| Mouth Elevation: | 774feet[5] |
| Progression: | Harmon Creek → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Ohio River |
| Tributaries Left: | unnamed tributaties |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Colliers Steel Road (x3) |
Alexanders Run is a 3.69miles long 1st order tributary to Harmon Creek in Brooke County, West Virginia. This is the only stream of this name in the United States.[3]
Alexanders Run rises at Weirton Heights, West Virginia, and then flows south-southwest to join Harmon Creek about 1 mile northwest of Colliers.[5]
Alexanders Run drains of area, receives about 40.0 in/year of precipitation, has a wetness index of 339.87, and is about 59% forested.[2]