XDR
# XDR

XDR may refer to:

* XDR (audio) or eXtended Dynamic Range, a quality-control system for pre-recorded audio cassettes
* XDR (video game), for the Sega Mega Drive
* XDR DRAM, a type of computer memory
* XDR Schema, a discontinued schema language for XML documents
* External Data Representation, a data interoperability format
* Extensively drug-resistant, a category of multiple drug resistance
* Special drawing rights, a monetary unit of the International Monetary Fund (ISO 4217 currency code XDR)
* Extended detection and response, a cyber security technology that monitors and mitigates cyber security threats
