Kwanthai Sithmorseng (Thai: ขวัญไทย ศิษย์หมอเส็ง, born August 18, 1984) is a professional boxer from Thailand.
He fights in the strawweight division and is the former WBA Minimumweight World champion.
He captured the title on November 5, 2010 by defeating fellow Thai Wicha Phulaikhao aka Pigmy Kokietgym and lost it on April 19, 2011 to Muhammad Rachman by KO.
[1] He began training in Muay Thai early on not knowing either of his parents.
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