Pethay Promjan is a professional footballer from THA and is currently 21 years old. He is on the books of Ratchaburi FC and wears shirt number 33. His main role on the pitch is Defender. His stronger foot is Right. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join Ratchaburi FC from Suphanburi FC via on 2025-07-05.

Across the Thai League 1 2025-2026, Pethay Promjan appeared in 13 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.