Siam Yapp (, born 27 May 2004) is a Thai professional footballer who plays as a forward or a winger for K League 2 club Paju Frontier.
As a youth player, Yapp joined the British International School, Phuket in Thailand. Before the 2022 season, he signed for Thai top flight side Police Tero. On 9 April 2022, he debuted for Police Tero during a 1âÂÂ4 loss to Bangkok United.
Yapp is eligible to represent England internationally.
In 2019, Yapp represented 2019 Thailand U15 in the 2019 AFF U-15 Championship playing 2 games in the tournament.