What title is given to an officer at the O-2 paygrade?

The title associated with the O-2 pay grade is "First Lieutenant" in the Army, Marine Corps, and Air Force. However, in the Navy and Coast Guard, the O-2 pay grade corresponds to "Lieutenant Junior Grade." This rank is typically occupied by officers who have progressed beyond their initial training and have greater authority and responsibilities than an Ensign, which is the O-1 rank.

Understanding military ranks is crucial as they denote both an officer's authority and the level of experience they have. "Lieutenant Junior Grade" serves as an introductory point for officers in the Navy or Coast Guard to take on leadership roles and further their careers. This title reflects the officer's skills, training, and readiness to participate in more significant operations within their respective branches.