Wiktionary
kthx
abbr. (context Internet slang English) okay, thanks
Wikipedia
KTHX
KTHX may refer to:
- KTHX-FM, a radio station (100.1 FM) licensed to Dayton, Nevada, United States
- kthx, internet slang for "okay, thanks"
- KTHX, an alumni association at KTH, Royal Institute of Technology, Stockholm Sweden