D11
- 11D (disambiguation)
- ARA La Argentina (D-11)
- ATC code D11
- Albatros D.XI
- Bavarian D XI
- Caterpillar D11
- D11 motorway (Czech Republic)
- DirecTV-11
- District 11 (disambiguation)
- Dublin 11
- Fokker D.XI
- HDCAM
- HMAS Vampire (D11)
- HMS Impulsive (D11)
- Jodel D.11
- LNER Class D11
- Metropolitan Police Specialist Firearms Command
- Nueva Esparta-class destroyer
- Slav Defence
- Steam locomotives of Ireland
- Warthin's tumor