Pichaya Chaiwarangkun is a 18-year-old professional football player from THA. He currently plays for BG Pathum United, wearing the number 19 shirt. At the international level, he represents Thailand U17. He plays primarily as a Forward. He stands at 175cm tall and weighs 70kg. His preferred foot is Right.

His most recent move was a from BG Pathum United U18 to BG Pathum United on 2025-07-31.

In the Thai League 1 2025-2026 season, Pichaya Chaiwarangkun scored 0 goals and provided 0 assists across 2 appearances, averaging 0 goals per game with 0 shots attempted and 0 on target.