Oberstabsarzt
Oberstabsarzt (short: OStArzt or OSA) is a military rank in German speaking armed force. It describes a medical staff officer surgeon or medical staff officer dentist comparable to major (de: Major) or lieutenant commander (de: Korvettenkapitän) NATO-Rangcode OF3 in anglophone armed forces.
| Oberstabsarzt | |||
| 
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| Rank insignia | German medical service ranks | ||
| Introduction | |||
| Rank group | Commissioned officers | ||
| Heer / Luftwaffe | *Oberstabsarzt *Oberstabsapotheker *Oberstabsveterinär  | ||
| Marine | *Oberstabsarzt *Oberstabsapotheker *Oberstabsveterinär  | ||
| short (in lists) | *OStArzt (OSA) *OStApotheker (OSAP) *OStVeterinär (OSV)  | ||
| NATO equivalent  | OF-3 | ||