The basic structure of the Spanish Navy, as defined by Instruction 4/2016 of the Chief of the Naval Staff, is as follows:

• Naval Headquarters
  • Naval Staff
  • Chief of the Naval Staff’s Inner Cabinet
  • Head Office of General Services, Technical Assistance, Information and Communications Systems
  • History and Naval Culture Department)
  • Legal Advice Department
  • Quartermaster’s Naval Delegation
  • Naval Central Court
• Force
  • Fleet
    • Naval Action Force
    • Maritime Action Force
    • Marine Corps Force
    • Aircraft Flotilla
    • Submarines Flotilla
    • Combat Certification and Assessment Center
    • Fleet Doctrine Center
• Force Support
  • Personnel Head Office
  • Logistic Support Head Office
  • Financial Affairs Head Office