TSA stands for:

  • Taipei Songshan Airport in Taiwan as an IATA Code
  • Technology Student Association, an international organization for students and teachers
  • Time Stamp Authority, a service which issues digitally signed time stamp, see timestamp
  • Portable pump trailer
  • Transportation Security Administration, U.S. government agency responsible for safety in transportation, part of the U.S. Department of Homeland Security
  • Dry juice, a dosage form in pharmaceutical technology
  • Tumor-specific antigen
  • Two Seat Aircraft, aircraft family in the Stemme AG
  • Thinking Skills Assessment, an entrance test for certain compartments of the universities of Cambridge and Oxford
  • Tajne Stowarzyszenie Abstynentów, a Polish heavy metal band, see TSA ( band )
  • Tourism Satellite Accounts in the tourism statistics

TSA as distinguishing signs on license plate:

  • Poland: powiat Sandomierz in the Province of the Holy Cross

Tsa stands for:

  • The letter ث in Jawi alphabet, see Tha ( Arabic letter )
  • Disambiguation
  • Abbreviation