Senior Chief Petty Officer is the eighth enlisted rank in the U.S. Navy, just above Chief Petty Officer and below Master Chief Petty Officer, and is a non-commissioned officer. They are referred to as Senior Chief in most circumstances.

Advancement to Senior Chief Petty Officer is similar to that of Chief Petty Officer. It carries requirements of time in service, superior evaluation scores, specialty examinations, and peer review. A Chief Petty Officer can only advance if the existing senior chiefs approve.

As with Chief Petty Officers, a Senior Chief Petty Officer takes on more administrative duties. Their uniform changes to reflect this change of duty; becoming similar to that of an officer, albeit with different insignia than an officer.

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