Which rank is represented by the O-6 designation?

The O-6 designation represents the rank of Captain in the United States Navy, Coast Guard, and certain other military branches. This ranking is significant as it indicates a senior officer who typically commands large naval vessels or serves in high-level staff positions, reflecting considerable experience and leadership capability.

In the context of military rank structures, O-6 sits above O-5 (Commander) and below O-7 (Rear Admiral, Lower Half). Understanding this hierarchy is crucial for identifying roles and responsibilities associated with each rank, especially in operational commands or strategic planning.

The other ranks mentioned do not correspond to the O-6 designation. For example, a Rear Admiral (Lower Half) is an O-7, while a Lieutenant Senior Grade is an O-3. Admiral represents a much higher rank at O-10. Each rank serves specific roles and is part of the broader structure used to maintain order and chain of command within military operations.