Leon Byner (born 17 September 1948) is a retired Australian broadcaster who started his radio career in 1966 in Shepparton, Victoria, Australia.

Leon has worked successfully in Sydney, Brisbane, Melbourne, Perth, and Hobart.

Byner has also presented segments for Adelaide, Brisbane local television and satellite TV Europe on Australian and international celebrities.

On 25 October 2011 ACMA found that on 1 October 2010 Byner's show had breached the Commercial Radio Codes by presenting a paid advertisement to promote water purifiers as a current affairs item regarding the "dangers" of water fluoridation.

During the investigation, was also acknowledged that Byner had no private arrangement with any party connected with the interview.