TNA

• 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, former name of La Liga Argentina de Básquet, 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 • TNA, code for Thane railway station, Maharashtra, India ==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==