What is the rank associated with the Navy O-3 pay grade?

The rank associated with the Navy O-3 pay grade is Lieutenant. In the structure of the U.S. Navy, the O-3 pay grade designates officers who have achieved the rank of Lieutenant. Officers at this rank typically have significant responsibilities, often serving as division officers or in similar positions, where they lead junior personnel and manage operations within their assigned units.

Understanding the hierarchy of ranks within the Navy helps clarify how the O-3 designation fits in. Following Lieutenant (O-3), the next rank is Lieutenant Commander (O-4), which represents a higher level of authority and responsibility. The other ranks listed—Commander (O-5) and Captain (O-6)—represent even higher pay grades and roles within the Navy. Recognizing this classification aids in comprehending the broader framework of military hierarchy and the progression of ranks and responsibilities among officers.