In 2016, Kiatisuk managed the Thai side in their defence of the 2016 AFF Championship. Having won all the games en route to the final, on 14 December Thailand lost 1-2 at Pakansari Stadium against Indonesia in the first leg of the final, despite having held the lead (with a goal from Teerasil Dangda) in the first half. Nevertheless, Thailand managed to secure a return of the trophy with a 2-0 win at Rajamangala Stadium and lifted their fifth regional title on 17 December 2016.