| Brady Run | |
| Name Other: | Tributary to Beaver River |
| Map Size: | 300 |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Brady Run mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States of America |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Beaver |
| Length: | 5.68miles[1] |
| Discharge1 Avg: | 25.71cuft/s at mouth with Beaver River[2] |
| Source1: | divide between Brady Run and North Fork Little Beaver Creek |
| Source1 Location: | about 3 miles west of Beaver Falls, Pennsylvania |
| Source1 Coordinates: | 40.7753°N -80.3689°W[3] |
| Source1 Elevation: | 1160feet[4] |
| Mouth: | Beaver River |
| Mouth Location: | Fallston, Pennsylvania |
| Mouth Coordinates: | 40.7156°N -80.3039°W[5] |
| Mouth Elevation: | 690feet[6] |
| Progression: | Beaver River → Ohio River → Mississippi River → Gulf of Mexico |
| River System: | Beaver River |
| Basin Size: | [7] |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | North Branch Brady Run South Branch Brady Run |
Brady Run is a tributary of the Beaver River in western Pennsylvania. The stream rises in central Beaver County then flows southeast entering the Beaver River at Fallston, Pennsylvania. The watershed is roughly 21% agricultural, 61% forested and the rest is other uses.[8]