Kamonwan Buayam (; born 15 February 1996) is a Thai former professional tennis player.
She has career-high WTA rankings of 343 in singles (achieved on 2 May 2016) and 310 in doubles (set on 20 February 2017).
Buayam made her main-draw debut on WTA Tour at the 2015 PTT Pattaya Open, in the doubles event partnering Luksika Kumkhum.