D39
D39 stands for:
- HMAS Hobart (D39) , destroyer of the Royal Australian Navy
 - HMS Amazon (D39) , Royal Navy destroyer
 - Viennese variant (ECO code) of the Rejected Queen's Gambit, an opening to the game of chess
 - "New formation of unsafe or unknown behavior of the female genital organs" (ICD-10 code), e.g. B. Moles
 
D-39 stands for:
- Akaflieg Darmstadt D-39 , German motor glider of Akaflieg Darmstadt