The Lower South West Football League is a country Australian rules football league incorporating teams from towns located within the South West and Great Southern regions of Western Australia.

Australian Rules Football in the lower south west region of Western Australia has been played since the early part of the 20th century.

The Nelson Football Association included teams from the areas of Bridgetown, Greenbushes, Balingup, Nannup and Boyup Brook.

The Warren Football Association was based in Manjimup and also included teams from the surrounding areas of Jardee, Pemberton, Northcliffe and Deanmill.

Other smaller leagues such as the Bridgetown and Nannup Football Associations also existed, but only for short periods of time.

The inaugural teams included Boyup Brook, Bridgetown, Deanmill, Royals, Imperials, Tigers, Nannup and Southerners.

Bridgetown resulted from the merger of Warriors (maroon and yellow) and Rovers (red and blue), Tigers resulted from the merger of Jardee (green and gold) and Fire Brigades (blue and white), and Royals resulted from the merger of Greenbushes Centrals (blue and white) and Balingup (black and white).

Kojonup were previously known as the Magpies and wore black and white, but were required to change their colours and adopt a new logo (Cougars) to avoid a clash with Manjimup Imperials.

They were originally known as the Boyup Brook Tigers wearing yellow and black, but changed their nickname to the Roos and their colours to green and white in 1987.

Kojonup - Moved to the LSWFL from the Great Southern FL in 2008, also changing their name and colours from the Kojonup Magpies, wearing black and white, due to Manjimup Imperials already possessing both the logo and colours.