Swan Lane Mills is a former cotton mill complex on Higher Swan Lane in Bolton, Greater Manchester, England. Historically in Lancashire, the mills were designed by Stott and Sons of Oldham and built in 1903, 1906, and 1914. When completed, the double mill was the largest spinning mill in the world. All three mills are Grade II* listed buildings. As of 2025, Nos. 1 and 2 accommodate a variety of commercial occupants, whereas No. 3 Mill is included on Historic England's Heritage at Risk Register.