Flying Officer is a junior commissioned rank in the Royal Air Force and the air forces of many other Commonwealth countries. It ranks above Pilot Officer and immediately below Flight Lieutenant.

It has a NATO ranking code of OF-1 and is equivalent to a Lieutenant in the British Army or the Royal Marines. However, it is considered superior to the nearest equivalent rank of Sub Lieutenant in the Royal Navy.

The rank insignia consists of one narrow blue band on a slightly wider black band. This is worn on both the lower sleeves of the tunic or on the shoulders of the flying suit or the casual uniform.

See also

• Comparative military ranks