KTSN may refer to:

  • KTSN (AM), a radio station (1060 AM) licensed to serve Lockhart, Texas, United States
  • KTSN-FM, a radio station (88.9 FM) licensed to serve Blowout, Texas; see List of radio stations in Texas
  • KJFK (AM), a radio station (1490 AM) licensed to serve Austin, Texas, which held the KTSN call sign from 2017 to 2022
  • KTSN (Nevada), a defunct radio station (1340 AM) formerly licensed to serve Elko, Nevada, United States