DSN

DSN may refer to:

• 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
• Deep Space Network, a communication network
• Star Trek: Deep Space Nine, a science fiction television program
• Defense Switched Network, a communications network operated by the United States Department of Defense
• 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
• DSN DASH, the U.S. Navy's Drone Anti-Submarine Helicopter.
• the IATA code for Ordos Ejin Horo Airport, China
• Deutsche Schulen Nigeria, a school system which includes the Deutsche Schule Abuja