KTHX-FM (94.5 MHz) is a commercial radio station broadcasting a Regional Mexican format. Licensed to Sun Valley, Nevada, it serves the Reno metropolitan area and Lake Tahoe. The station is owned and operated by Lotus Communications. The radio studios are on Plumb Lane in South Reno.

KTHX-FM has an effective radiated power (ERP) of 50,000 watts. The transmitter is located off McGuffrey Road on Red Hill in North Reno. Programming is also heard on a 99 watt FM translator, K232EA, at 94.3 MHz in Carson City, Nevada.

The station signed on the air in 1999 as KHXR. In 2004, it changed its call sign to KUUB.

On September 13, 2010, KUUB changed its format from country music to sports with programming from ESPN Radio. On October 5, 2021, the station changed its call sign from KUUB to KTHX-FM. Its sister station on 100.1 MHz, KWEE, had previously used the KTHX-FM call letters from 1997 to October 2021.

On February 6, 2023, KTHX-FM changed its format from sports to Regional Mexican, branded as "Que Buena 94.5".

KTHX-FM serves as the flagship radio station for the University of Nevada, Reno's athletic teams and the Nevada Wolf Pack Sports Network.

KTHX-FM broadcasts Las Vegas Raiders NFL games as the Reno affiliate for the Raiders Radio Network.

• Facility details for Facility ID 83586 (KTHX-FM) in the FCC Licensing and Management System
• KTHX-FM in Nielsen Audio's FM station database
• Facility details for Facility ID 86396 (K232EA) in the FCC Licensing and Management System
• K232EA at FCCdata.org