What are the ranks in the Navy Seals?

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Most Navy SEALs (about 2,000) are enlisted men who hold the rank of E-4 to E-9 (Petty Officer 3rd Class to Master Chief Petty Officer). They are led by roughly 500 SEAL Officers who hold the rank of O-1 to O-10 (Ensign to Admiral Chief of Naval Operations). There are also a few SEAL Warrant Officers (perhaps 30 or so) who rank as officers above the senior-most Enlisted but lower than a Commissioned Officer.

Like every military organization, there is a command structure, which requires having different ranks. The same is true of SF, Rangers, Delta, MARSOC, etc. There are no military organizations where everyone is the same rank.

If you instead meant “Do Navy SEALs have unique ranks?” then the answer is no. The SEALs are part of the Navy and use Navy ranks.

U.S. Navy SEALs Ranks – Enlisted, from Lowest to Highest

E-4 petty officer third class - What are the ranks in the Navy Seals? Petty Officer Third Class PO3 Noncommissioned Officer
E-5 petty officer second class - What are the ranks in the Navy Seals? Petty Officer Second Class PO2 Noncommissioned Officer
E-6 petty officer first class - What are the ranks in the Navy Seals? Petty Officer First Class PO1 Noncommissioned Officer
E-7 chief petty officer - What are the ranks in the Navy Seals? Chief Petty Officer CPO Senior Noncommissioned Officer
E-8 senior chief petty officer - What are the ranks in the Navy Seals? Senior Chief Petty Officer SCPO Senior Noncommissioned Officer
E-9 master chief petty officer - What are the ranks in the Navy Seals? Master Chief Petty Officer MCPO Senior Noncommissioned Officer

U.S. Navy SEALs Ranks – Officers, from Lowest to Highest

O-1 ensign - What are the ranks in the Navy Seals? Ensign ENS Junior Officer
O-2 lieutenant junior grade - What are the ranks in the Navy Seals? Lieutenant Junior Grade LTJG Junior Officer
O-3 lieutenant - What are the ranks in the Navy Seals? Lieutenant LT Junior Officer
O-4 lieutenant commander - What are the ranks in the Navy Seals? Lieutenant Commander LCDR Junior Officer
O-5 commander - What are the ranks in the Navy Seals? Commander CDR Senior Officer
O-6 captain - What are the ranks in the Navy Seals? Captain CAPT Senior Officer
O-7 rear admiral lower half - What are the ranks in the Navy Seals? Rear Admiral Lower Half RDML Flag Officer
O-8 rear admiral - What are the ranks in the Navy Seals? Rear Admiral RADM Flag Officer
O-9 vice admiral - What are the ranks in the Navy Seals? Vice Admiral VADM Flag Officer
O-10 admiral - What are the ranks in the Navy Seals? Admiral ADM Flag Officer