What rank do graduates of OCS receive upon commissioning?

Graduates of Officer Candidate School (OCS) are commissioned as Ensigns, which is the entry-level officer rank in the Navy, classified as O-1. This rank is crucial for new officers as it marks the beginning of their professional military careers and includes responsibilities that involve leadership, decision-making, and operational duties.

The transition to Ensign signifies that they have successfully completed their rigorous training and education at OCS, preparing them for roles that may include serving on ships, submarines, or in various administrative capacities. This rank serves as a foundational stepping stone in the officer's journey, as they will have opportunities for promotion based on performance, time in service, and additional qualifications.

The other ranks mentioned are higher in the officer hierarchy; Captain (O-3) and Commander (O-5) are significantly more advanced positions typically attained after years of experience and demonstrated leadership capabilities. Lieutenant (O-2) comes after Ensign but is not the immediate rank awarded upon graduation from OCS. Thus, the accurate response reflecting the rank conferred at commissioning is Ensign (O-1).