| River Irk | |
|---|---|
 The Irk at Crumpsall | |
  Location of the mouth within Greater Manchester | |
| Location | |
| Country | England |
| Physical characteristics | |
| Source | |
| • location | Royton |
| Mouth | |
• location | River Irwell |
• coordinates | 53°29′12.93″N 2°14′42.13″W / 53.4869250°N 2.2450361°W |
The River Irk is a river in the historic county of Lancashire in the North West England that flows through the northern most Lancastrian towns of the ceremonial county of Greater Manchester.
It rises to the east of Royton and runs west past Chadderton, Middleton and Blackley before merging with the River Irwell in the centre of Manchester.