KTSW 89.9

- Call Letters: KTSW
- Frequency: 89.9
- http://ktsw.txstate.edu
- http://ktsw.net
- Networks: Reveal
KTSW 89.9 is the official radio station of Texas State University in San Marcos, Texas, offering a diverse range of programming: music, news, sports, information, entertainment & public service programs.