DDG may refer to:
- IATA code for Dandong Langtou Airport, China
- DuckDuckGo, an internet search engine
- Dried distillers' grain, a cereal byproduct of the distillation process
- Hull classification symbol for U.S. Navy guided missile destroyers
- Drop Dead, Gorgeous, a post-hardcore band
- David De Gea, Spanish goalkeeper.
- DDG Hansa, Deutsche Dampfschiffahrts-Gesellschaft Hansa, German Steamship Company Hansa