What is the rank of Starscream in the Decepticon hierarchy?

Starscream’s Generation 1 rank or function in the Decepticon hierarchy is Air Commander.

As Decepticon Air Commander, Starscream leads the Seeker jets, including Thundercracker and Skywarp in the original character grouping. His fighter-jet alternate mode and command of the Decepticons’ aerial forces explain why “Air Commander” is used instead of a conventional army rank such as general or lieutenant.

Starscream is also commonly described as Megatron’s second-in-command. That phrase identifies his political position, not necessarily the formal title asked for here. He is close enough to Decepticon leadership to issue orders, but he repeatedly schemes to replace Megatron, so his status is unstable and often contested.

The wording can be confusing because Transformers profiles combine rank, function, affiliation, and chain-of-command labels. In different continuities, Starscream may become leader, serve another commander, or receive different titles. For the classic Generation 1 characterization represented by the listed source, Air Commander is the intended canonical answer.