Napa Kiatwanchai (born July 27, 1967) is the former Lineal and WBC strawweight champion from Nakorn Rachasima (Korat) province, Thailand.
He started training in Muay Thai as a child, he competed on the Bangkok circuit until the age of 20 under the ring name Chokchaichew Na Pattaya (โชคชัยจิ๋ว ณ พัทยา).
He transitioned to boxing in 1987 and fought Hiroki Ioka a year later for the Lineal and WBC strawweight titles.
[1] The bout ended in a draw and in the rematch Kiatwanchai won the title by a twelve-round majority decision.
Napa was expected to extend the age of the champ Hiroki Ioka, so, he was sent to Japan with his trainer Kunoi Withichai only 2 people.