The River Irk is a river located in Greater Manchester, England. It flows through the city of Manchester and eventually joins the River Irwell. The river is approximately 10 miles long and has played a significant role in the region's industrial history, providing water for mills and factories during the Industrial Revolution. The River Irk is known for its urban landscape, with sections running through parks and residential areas. Efforts have been made to improve its water quality and surrounding environment, making it a focus for local conservation initiatives. The river is also part of the Irk Valley and contributes to the area's biodiversity.