TDN
The abbreviation stands for TDN:
- Test of German as a foreign language proficiency levels
- Turkish Daily News, an English-language daily newspaper in Turkey
- Telekom Designed Network, framework contracts of Deutsche Telekom AG
The abbreviation stands for TdN:
- Lower Saxony Day, a cultural festival in the state of Lower Saxony
- Tour de nature, an annual bike ride for sustainable transport policy
- Disambiguation
- Abbreviation