TNA
TNA stands for:
- Tamil National Alliance , an association of Tamil parties
- Taskbar Notification Area , the notification area in the control bar of the graphical user interface of an operating system
- Technical and scientific applications , a subject at universities
- Technology-neutral architecture , part of the New Generation Operations Systems and Software program
- Participation application for public tenders
- Thai News Agency , a Thai news agency
- The National Archives , a UK agency that maintains the National Archives for England, Wales and the United Kingdom
- Animal, nature and species protection
- Total Nonstop Action Wrestling , an American wrestling organization
- TransAsia Airways , a Taiwanese airline (ICAO code)
- Nagold station according to DS 100
- Threonucleic acid, more precisely: α-l-threose nucleic acid, a xenonucleic acid
- Transaction Network Analysis, a fraud early warning system that uses artificial intelligence to detect cross-border sales tax fraud more quickly. Introduced in the EU from 2018
TNA-3 stands for:
