|Service branch||German Navy|
|Abbreviation||OBtsm or OB|
|Rank insignia||German NCO rank|
|Rank group||Non-commissioned officers|
|Next higher rank||Hauptbootsmann|
Oberfähnrich zur See
|Next lower rank||Bootsmann|
Oberbootsmann (OBtsm or in lists OB) designates in the German Navy of the Bundeswehr a military person or member of the armed forces. It belongs to the particular rank group Senior NCOs with port epée.
According to the salary class it is equivalent to the Oberfeldwebel of Heer or Luftwaffe. It is grouped as OR6 in NATO, equivalent to First Sergeant, Master Sergeant, or Senior Chief Petty Officer in the US Armed forces, and to Warrant Officer Class 2 in the British Army and Royal Navy.
In navy context NCOs of this rank were formally addressed as Herr Oberbootsmann also informally / short Oberbootsmann.
The sequence of ranks (top-down approach) in that particular group is as follows:
Unteroffiziere mit Portepee
The abbreviation "OR" stands for "Other Ranks / fr: sous-officiers et militaires du rang / ru?, "!