| KFTZ | |
| City: | Idaho Falls, Idaho |
| Area: | Idaho Falls, Idaho Pocatello, Idaho Rexburg, Idaho Blackfoot, Idaho |
| Branding: | Z103 |
| Repeater: | 103.3 KFTZ-FM1 (Pocatello) |
| Airdate: | 1986 |
| Format: | Top 40 (CHR) |
| Subchannels: | HD2: 90s/2000s hits "Throwback 103" HD3: Dance music "Vibez 103" |
| Erp: | 100,000 watts 200 watts (KFTZ-FM1) |
| Haat: | 201 meters (main station) |
| Class: | C1 (main station) D (repeater) |
| Facility Id: | 18116 |
| Owner: | Riverbend Media Group |
| Sister Stations: | KLCE, KCVI, KTHK, KEII |
| Webcast: | Listen Live Listen Live (HD2) Listen Live (HD3) |
| Website: | z103.fm |
KFTZ (103.3 FM, "Z103") is a top 40 (CHR) radio station located in Idaho Falls, Idaho. It is licensed, owned and operated by Riverbend Communications.KFTZ has been Southeast Idaho's hot music station since the 80s. In November of 2023, KFTZ and its sister stations launched HD2 channels. KFTZ launched Throwbacks 103 highlighting songs from its history and HD3 is a dance channel playing music from their weekend mixshow.[1]