CHTZ-FM
| Broadcast area | Niagara Region | 
|---|---|
| Frequency | 97.7 MHz (FM) | 
| Branding | 97.7 HTZ-FM | 
| Programming | |
| Format | Active rock | 
| Ownership | |
| Owner | 
 | 
| CKTB, CHRE-FM | |
| History | |
| First air date | February 1, 1949 | 
| Call sign meaning | Canada's HiTs(Z) (branding) | 
| Technical information | |
| Class | B | 
| ERP | 50,000 watts | 
| HAAT | 119.5 meters (392 ft) | 
| Links | |
| Webcast | Listen Live | 
| Website | iheartradio.ca/977htzfm | 
CHTZ-FM (97.7 MHz) is a commercial FM radio station in St. Catharines, Ontario, Canada, serving the Niagara Region. It is owned by Golden Horseshoe Broadcasting and broadcasts an active rock format, branded as 97.7 HTZ-FM (pronounced "Hits FM"). CHTZ shares studios (nicknamed "The White House of Rock") with its sister stations, CKTB and CHRE-FM, in "Oak Hill Mansion", the former home of William Hamilton Merritt, at 12 Yates Street in downtown St. Catharines.
CHTZ-FM has an effective radiated power (ERP) of 50,000 watts. The transmitter is on Cataract Road in Thorold, sharing its tower with CHRE-FM.