DSN

DSN may refer to:

Technology

Computing & Internet

• Data set (IBM mainframe) Name, the name of a computer file having a record organization
• Data Source Name, a data structure used to describe a connection to a data source
• Delivery Status Notification message, an automated electronic mail message about a delivery problem
• Distributed social network, a social network that is decentralised and distributed across multiple providers.
• International Conference on Dependable Systems and Networks

Military

• Defense Switched Network, a communications network operated by the United States Department of Defense
• DSN DASH, the U.S. Navy's Drone Anti-Submarine Helicopter.

Space

• Deep Space Network, a communication network

Others

• Deutsche Schulen Nigeria, a school system which includes the Deutsche Schule Abuja
• IATA code for Ordos Ejin Horo Airport, China
• Star Trek: Deep Space Nine, a science fiction television program