What is the highest rank in the Royal Air Force?

The highest rank in the Royal Air Force is Marshal of the Royal Air Force. This rank signifies a position of great seniority and authority, typically held by an officer who has demonstrated exceptional leadership and commitment to the service. The title carries considerable prestige and is generally awarded only to a few individuals, often in ceremonial or historical contexts.

In contrast, the other ranks listed, such as Flight Lieutenant, Wing Commander, and Group Captain, are subordinate to the rank of Marshal. Flight Lieutenant is a junior officer rank, while Wing Commander and Group Captain are higher but not the pinnacle of the hierarchy. Hence, the rank of Marshal of the Royal Air Force stands distinct as the ultimate achievement within the RAF's commissioned officer ranks.