DERA may refer as an abbreviation or acronym to:
- Defence Evaluation and Research Agency
- Downtown Eastside Residents Association – in Vancouver, British Columbia
- Direct Epitope Recognition Assay
- Disaster preparedness and Emergency Response Association
- Diesel Emissions Reduction Act
Dera may also refer to:
- Dera (woreda), a woreda in the Amhara Region of Ethiopia
- Daraa, a city in Syria
- Dera or Dehra: a camp or a settlement, specially a religious establishment in India such as:
- Dera Baba Nanak
- Dera Sacha Sauda, a sect at Sirsa, Haryana, India
- Dera Sach Khand
- Dehra Doon
- Derasar: a Jain temple
- Dera (woreda)
- Dera, Oromia (woreda)
- Dera, Ethiopia
- Dera Urdu: ڈیرہ ) is a Punjabi and Seraiki language word meaning camp or settlement.
- Dera Allah Yar
- Dera Bugti District
- Dera Bugti
- Dera Dildar
- Dera Ghazi Khan District
- Dera Ghazi Khan Division
- Dera Ghazi Khan International Airport
- Dera Ghazi Khan Tehsil
- Dera Ghazi Khan
- Dera Ismail Khan Airport
- Dera Ismail Khan District
- Dera Ismail Khan Division
- Dera Ismail Khan Tehsil
- Dera Ismail Khan
- Dera Murad Jamali
- FR Dera Ismael Khan
- Saddar Dera Bugti