Ongsa Singthong is a professional footballer from THA and is currently 22 years old. He is on the books of Chiangrai United and wears shirt number 50. His main role on the pitch is Forward. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join Chiangrai United from Assumption United via on 2024-07-15.

During the Thai League 1 2025-2026 campaign, Ongsa Singthong made 10 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.