DDN
# DDN

DDN may refer to:

## Arts, media and entertainment

* Daydream Nation, a music album by Sonic Youth
* Dayton Daily News, a daily newspaper in Dayton, Ohio, US
* Digital Delivery Network, a service of the Community Radio Network in Australia
* Digital Distribution Netherlands, a Dutch digital music distributor
* Double Down News, an alternative media outlet in the UK
* Dustin's Daily News, a comedic current affairs TV show

## Computing

* DataDirect Networks, a data storage company
* Defense Data Network, a separate instantiation of the ARPANET used by the U.S. Department of Defense from 1983 to 1995
* Dot-decimal notation, a human readable way to write IPv4 internet addresses

## Other uses

* Dehradun railway station (station code), India
* Digital Divide Network, an online community of activists
