The 2018 King's Cup is an international football tournament that is currently being held in Thailand from 23 to 25 March 2018. The 4 national teams involved in the tournament are required to register a squad of 23 players. Players marked (c) were named as captain for their national squad. Number of caps counts until the start of the tournament, including all FIFA-recognized pre-tournament friendlies. Player's age is their age on the opening day of the tournament.