Navy

The insignia worn by commissioned officers

Admiral of the Fleet

Admiral

Vice Admiral

Rear Admiral

Captain

Commander

Lieutenant Commander

Lieutenant

Lieutenant Junior
Grade

Senior Ensign

Ensign

The insignia worn by noncommissioned officers

Senior Chief Petty Officer 

Master Chief Petty Officer

Senior Chief Petty Officer

Chief Petty Officer

Petty Officer First Class

Petty Officer Second Class

The insignia worn by seamen

Petty Officer Third Class

Seaman

Seaman Apprentice