TAM may refer to:


  • Thioacetamide, an organosulfur compound
  • Tumor-associated macrophage, a class of immune cells
  • Transparent Anatomical Manikin, an educational model


  • Tanque Argentino Mediano, the main battle tank of Argentina
  • Technology acceptance model, an information systems theory
  • Teen Age Message, interstellar radio transmissions
  • Telecom Application Map
  • Telephone answering machine
  • IBM Tivoli Access Manager, access control software
  • Twentieth Anniversary Macintosh, a limited-edition personal computer released by Apple in 1997
  • Technical Account Manager


  • TAM – Transporte Aéreo Militar, Bolivian airline
  • TAM Air, a Georgian airline
  • Tovarna avtomobilov Maribor, a former Slovenian automotive company
  • Transports de l'Agglomération de Montpellier (TaM), a public transport company in France
  • TAM Airlines (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
  • Tbilisi Aircraft Manufacturing, Georgia


  • 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

    Other uses

  • Tam (name), a list of people with the first name, nickname or last name
  • Tam (women's hat)
  • 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
  • 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.