What rank is designated by the O-5 title in the Navy?

The rank designated by the O-5 title in the Navy is Captain. In the United States Navy, the O-5 rank signifies a specific level of seniority and authority. A Captain is typically in command of larger units, such as ships or bases, and plays a significant role in strategic planning and leadership within the Navy. This rank is equivalent to a Colonel in the Army, Air Force, and Marine Corps.

Commander, which is designated as O-5, is actually the O-4 rank in the Navy hierarchy, and therefore does not represent the correct rank at O-5. Similarly, Rear Admiral (O-7) is a higher rank, while Lieutenant Commander (O-4) falls below Captain in ranking. Understanding these designations is crucial in navigating military structure and identifying the responsibilities associated with different ranks.