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// Commissioned Officer · O-6 · NATO OF-5

CAPTAIN (CAPT) — U.S. NAVY O-6

The Navy's most senior officer rank below flag — commanders of carriers, cruisers, ballistic-missile submarines, and major shore commands.

Silver eagle — U.S. Navy Captain collar device
Insignia
Paygrade
O-6
Abbreviation
CAPT
NATO Code
OF-5
Category
Commissioned Officer
Basic Pay (2026)
$8,375–$14,822/mo
Flag Officer
No

OVERVIEW

Captain (CAPT) is the U.S. Navy O-6 commissioned officer rank, equivalent to a Colonel in the Army, Marine Corps, Air Force, and Space Force. The rank carries enormous prestige in the sea services because of the historical association with command of a ship: in the U.S. Navy, only the Commanding Officer of a vessel is referred to verbally as "Captain" regardless of their paygrade. A four-stripe Captain (O-6) is eligible for major sea command — an aircraft carrier, cruiser, ballistic-missile submarine, or a major shore installation.

CAPT insignia is a silver eagle ("scrambled eggs" begin appearing on the dress cap visor as well), worn on the collar or shoulder boards. On the service dress blue uniform, a Captain wears four full stripes of gold lace. Captains are eligible for selection to flag rank — promotion to Rear Admiral (Lower Half), O-7 — through a separate, highly competitive flag-officer selection board.

RESPONSIBILITIES

  • Commanding Officer of an aircraft carrier (CVN), cruiser (CG), or ballistic-missile submarine (SSBN/SSGN)
  • Commanding Officer of a major shore installation or training command
  • Air Wing Commander (CAG) of a Carrier Air Wing
  • Major staff director at OPNAV, the Joint Staff, or a Combatant Command

HISTORY

The grade of Captain in the U.S. Navy dates to the founding of the Continental Navy in 1775. For more than a century, "Captain" was the most senior rank in the U.S. Navy — there were no Admirals in the U.S. Navy until 1862, when Congress authorized the rank of Rear Admiral specifically to honor David Glasgow Farragut for his service in the Civil War.

Today, command of a nuclear-powered aircraft carrier or a ballistic-missile submarine at the O-6 level is among the most demanding command tours in the U.S. military, typically following decades of operational, joint, and major-command experience.

PAY

O-6 basic pay · 2026 DFAS table
$8,375 – $14,822/ month
2026 DFAS basic pay table; O-6 pay caps below the highest pay tier without 30+ years of service.
How to address
Verbally "Captain Smith." In writing: "CAPT Jane Smith, USN."
Prerequisites
  • Selection by an O-6 statutory promotion board
  • Successful completion of an O-5 major command or major staff tour
  • Joint Professional Military Education (JPME) Phase II for many billets
Common assignments
  • CO of an aircraft carrier (CVN), cruiser (CG), or SSBN
  • Commanding Officer of a major shore installation (e.g., NAS Pensacola, NAS Lemoore)
  • Carrier Air Wing Commander (CAG)
  • Director on the OPNAV, Joint Staff, or Combatant Command staff

ADJACENT RANKS

Previous · O-5CommanderNext · O-7 Rear Admiral (Lower Half)

RELATED BASE

Navy Base · FL
Naval Air Station Pensacola
NAS Pensacola, the "Cradle of Naval Aviation," is commanded by a Navy Captain.

FREQUENTLY ASKED QUESTIONS

No. A Navy Captain is paygrade O-6 — equivalent to an Army or Marine Corps Colonel. An Army Captain is paygrade O-3, equivalent to a Navy Lieutenant.

In the U.S. Navy, the Commanding Officer of any commissioned vessel is referred to verbally as "Captain" regardless of their actual paygrade — even if the CO holds a junior rank such as Lieutenant. The title comes from the position, not the rank.

SOURCES

Last updated 2026-05-02
All Officer RanksFull Rank Structure