TAM may refer to: Biology Thioacetamide, an organosulfur compound Tumor-associated macrophage, a class of immune cells Transparent Anatomical Manikin, an educational model Technology Tanque Argentino Mediano, the main battle tank of Argentina Technological Association Malaysia, a learned society Technology acceptance model, an information systems theory Teen Age Message, interstellar radio transmissions Telecom Application Map Telephone answering machine Twentieth Anniversary Macintosh, a limited-edition personal computer released by Apple in 1997 Transportation TAM – Transporte Aéreo Militar, Bolivian airline TAM Air, a Georgian airline Tovarna avtomobilov Maribor, a former Slovenian commercial vehicle manufacturer, Transports de l'Agglomération de Montpellier (TaM), a public transport company in France TAM Linhas Aéreas, the former name of LATAM Brasil IATA airport code of General Francisco Javier Mina International Airport, Tampico, Mexico National Rail code of Tamworth railway station, England TAM Management, Georgia Tbilisi Aircraft Manufacturing, Georgia MTR station code of Tamar station, Hong Kong MRT station abbreviation of Tampines MRT station, Singapore Characters Tam Lin, in a Scottish Borders ballad Tam Sventon, a private detective in Swedish children's novels River Tam, in the Firefly television series Simon Tam, in the Firefly television series Tấm, in the Vietnamese fairy tale The Story of Tam and Cam Tam Song, moody secretive dude, one of the song twins in KOTLC by Shannon Messenger Other uses Tam (name), a list of people with the first name, nickname or last name Tam cap Tam o' shanter (cap), bonnet from Scotland TAM (theatre), a theatre in North Rhine-Westphalia, Germany TAM Media Research, an Indian television audience measurement company TAM Mild Jalapeño, developed by Texas A&M University Toyota Astra Motor, an Indonesian automotive company Cyclone Tam (2006) The Amaz!ng Meeting, conference on critical thinking Total addressable market, for a product or service Mount Tamalpais, California, known locally as Mount Tam Tainan Art Museum, a museum in Tainan, Taiwan Tamalpais High School, California, United States, often abbreviated as Tam Picul or tam, a traditional Asian unit of weight ISO 639-3 language code of the Tamil language Team Action Management, programme that Albert S. Humphrey was involved with Tense–aspect–mood (or Tense–aspect–mood–evidentiality, abbreviated as ), refers to a group of grammatical categories in the study of linguistics. See also TAM 5 or The Spirit of Butts' Farm, the first model plane to cross the Atlantic Ocean Tams (disambiguation) Tamtam (disambiguation)