WBIZ-FM (100.7 MHz, "Z100") is a top 40 (CHR) radio station in Eau Claire, Wisconsin. The station is currently owned by iHeartMedia. The studios are located in Eau Claire while the transmitter is located near County Highway T and 60th Ave north of Eau Claire.

The station airs programming from iHeartMedia's Premiere Networks such as On Air with Ryan Seacrest, On the Move with Enrique Santos, Most Requested Live with Romeo, American Top 40, iHeartRadio Countdown, and The Vibe with Tanya and EJ.

WBIZ-FM also serves as Eau Claire's radio home of the Green Bay Packers and Wisconsin Badgers football.

Howard Bill, general manager of WBIZ-AM, launched WBIZ-FM on December 27, 1967 as a primary simulcast to its AM station after receiving the authorization green light from the Federal Communications Commission. WBIZ-FM is also one of the first radio stations in Northern Wisconsin to receive stereophonic sound in October 1974, and WBIZ-FM dropped its simulcast the following year when the station received its longtime "Z100" branding on November 3, 1975, which retained its Top 40 music format that was originally delivered from its AM station.

• Z100
• Facility details for Facility ID 2108 (WBIZ-FM) in the FCC Licensing and Management System
• WBIZ-FM in Nielsen Audio's FM station database

44°55′44″N 91°32′31″W / 44.929°N 91.542°W / 44.929; -91.542