Oberfähnrich zur See (OFähnr zS or OFRZS) designates in the German Navy of the Bundeswehr a military person or member of the armed forces with the last or highest Officer Aspirant (OA – de: Offizieranwärter) rank. According to the salary class it is equivalent to the Portepeeunteroffizier ranks Hauptbootsmann (Marine) and Hauptfeldwebel of Heer or Luftwaffe.