TDN
The abbreviation TDN stands for:
- Test German as a foreign language levels
- Turkish Daily News , an English language daily newspaper in Turkey
- Telekom Designed Network are framework agreements of Deutsche Telekom AG
The abbreviation TdN stands for:
- Day of Lower Saxony , a cultural festival in the state of Lower Saxony
- Tour de Natur , an annual bicycle tour for sustainable transport policy
