What is the rank for O-5 in the Navy?

The rank for O-5 in the Navy is Commander. In the United States Navy, the rank structure is organized numerically where "O" denotes officer ranks. As officers progress through ranks, O-1 starts with Ensign and continues up to O-10 for Admiral. The rank of Commander, which is O-5, is positioned above Lieutenant Commander (O-4) and below Captain (O-6).

This rank signifies significant leadership responsibilities and authority, typically in command of a ship, submarine, or aviation squadron. Commanders are often involved in strategic planning and operations, reflecting their elevated position within the Navy hierarchy. Hence, recognizing O-5 as Commander is crucial for understanding the Navy’s rank classification and the responsibilities associated with this rank.