Fähnrich zur See (Fähnr zS or FRZS) designates in the German Navy of the Bundeswehr a military person or member of the armed forces with the second highest Officer Aspirant (OA – German: Offizieranwärter) rank. According to the salary class it is equivalent to the Portepeeunteroffizier ranks Bootsmann (Marine) and Feldwebel of Heer or Luftwaffe. It is also grouped as OR-6 in NATO, equivalent to Technical Sergeant, Staff Sergeant, or Petty Officer First Class in the US Armed forces, and to Petty officer in the British Army and Royal Navy.