TNA may refer to:

Organisations

• Tamil National Alliance, a political coalition in Sri Lanka
• The National Alliance, a political party in Kenya
• The National Archives (United Kingdom), a UK public body
• Tonga Nurses' Association, a trade union
• Trans Nation Airways, an Ethiopian charter airline

Science and technology

• Threose nucleic acid, an artificial genetic polymer
• 2,4,6-Trinitroaniline, a nitrated amine
• Time and attendance, a system that monitors and records employee attendance

Sports

• Total Nonstop Action Wrestling, American professional wrestling promotion
• Torneo Nacional de Ascenso, a division of the Argentine basketball league

Transport

• TNA, IATA code for Jinan Yaoqiang International Airport, China
• TNA, ICAO code for TransAsia Airways
• TNA, National Rail code for Thornton Abbey railway station

Other uses

• TNA (Airborne nuclear warhead), a French thermonuclear warhead
• TNA, a clothing brand of Aritzia
• tna, ISO 639 code for Tacana language
• TNA Media, owner of The New Age
• TNA Park, a multi-use stadium in Tarkwa, Ghana
• Tashi Namgyal Academy, a public school in Sikkim, India
• The New American, a print magazine
• Training needs analysis, the process of identifying the gap between training and needs

See also

• All pages with titles containing TNA
• All pages with titles beginning with TNA
• Mr. TNA (disambiguation)
• T & A (disambiguation)