What rank does O-3 correspond to?

The rank of O-3 in the U.S. Navy corresponds to the rank of Lieutenant. In the military ranking system, O-3 is a commissioned officer grade that denotes the level of seniority and responsibility a Lieutenant holds. Lieutenants typically serve as division officers and are often in charge of leading junior officers and enlisted personnel, managing various aspects of naval operations, and ensuring that missions are accomplished effectively.

This rank is a critical step for those pursuing further advancement within the officer ranks, which can lead to higher ranks, such as Lieutenant Commander (O-4). Understanding the hierarchy of ranks is fundamental in the military structure, as it informs personnel about the command chain and the roles and authorities of various ranks.