| Dera Allah Yar | |
| Settlement Type: | City |
| Official Name: | Dera Allah yar |
| Other Name: | Jhat Pat |
| Pushpin Map: | Balochistan Pakistan#Pakistan |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location within Pakistan |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Division |
| Subdivision Name2: | Nasirabad |
| Subdivision Type3: | District |
| Subdivision Name3: | Jaffarabad |
| Area Code Type: | Calling code |
| Timezone1: | PST |
| Utc Offset1: | +5 |
| Population Total: | 80,908 |
| Population Footnotes: | [1] |
| Population As Of: | 2017 |
Dera Allah Yar (Urdu: {{Nastaliq|ڈیرہ اللہ یار) is a city and the headquarters of the Jaffarabad District located in Pakistan's Balochistan province. It lies 300 km from the provincial capital Quetta.
The city was formerly known as Jhatpat. The city was renamed after the assassination of Mir Allahyar Khan Khosa, a political leader from the area.
The word Dera means abode or settlement in Balochi, Pashto, Urdu, and Punjabi languages. Dera Allah Yar thus means the settlement or city of Allah Yar. Some other cities also have Dera as a pre-fix such as Dera Bugti, Dera Ismail Khan, and Dera Ghazi Khan.
On 27 August 2008 at least 25 people belonging to the Jamhoori Wattan Party (JWP-Aali) suffered injuries when a bomb exploded in a public meeting. The bomb had been placed on a motorcycle, the activists had gathered for a meeting on the second anniversary of the death of Akbar Bugti.[2]