Great Lake Swimmers is a Canadian folk rock band from Wainfleet, Ontario, and currently based in Toronto.

The current touring line-up is Tony Dekker on lead vocals, acoustic guitar and harmonica, Erik Arnesen on banjo, electric guitar and harmonium, Ryan Granville-Martin on drums and backing vocals, Bret Higgins on upright bass and Kelsey McNulty on keyboards and backing vocals. Past members included Julie Fader on backing vocals, Sandro Perri on guitar, and Greg Millson and Colin Huebert on drums.

The band's style has been compared to Red House Painters, Nick Drake, Iron & Wine and Neil Young, as well as Will Oldham (Bonnie "Prince" Billy) and Sufjan Stevens. Dekker has cited influences including Gram Parsons and Hank Williams.