Marshal of the Royal Thai Air Force (Thai: จอมพล อากาศ Chom Phon Akat) is a 5-star rank and the most senior rank in the Royal Thai Air Force. It is equivalent to a Field Marshal (or Chom Phon) in the Royal Thai Army and an Admiral of the Fleet (or Chom Phon Ruea) in the Royal Thai Navy. The rank of Marshal of the RTAF is also equivalent to the British rank of Marshal of the Royal Air Force.
The command flag for marshals of the RTAF shows five stars.
The following people have held the rank:
| Year of promotion | Officer | Year of birth | Year of death | Notes |
|---|---|---|---|---|
| Fuen Ronnaphagrad Ritthakhanee | 1900 | 1987 | [1] | |
| Chaloemkeit Vatthanangkun | 1914 | 1960 | ||
| HM Queen Sirikit | 1932 | - | Honorary rank.[2] | |
| c. 1964 | Thanom Kittikachorn | 1912 | 2004 | Promoted himself. |