KNZR-FM (97.7 FM) is a commercial radio station licensed to Shafter, California, United States, and serving the Bakersfield market. Owned by Frequency Media. KNZR-FM simulcasts a conservative talk radio format with KNZR (1560 AM), with studios on Pegasus Drive in Bakersfield.

KNZR-FM's transmitter is sited off Warehouse Road in Oildale.

The station signed on the air on March 3, 1978. The original call sign was KQEZ. It carried an easy listening format of soft instrumentals and a few vocals per hour. The following year, it switched its call sign to KMGN, airing a country music format. The station was owned by Brandon-Dorsey Communications.

In 1986, Community Service Broadcasters took over as debtor in possession. The call letters switched to KKBB and the station featured an album rock sound, using NBC Radio's "The Source" young adult network for news and features. In 1996, the station switched to a Regional Mexican format as KRME, when it was owned by Spanish-language broadcaster Eduardo Caballero.

The station was assigned the KSMJ call letters by the Federal Communications Commission on February 6, 2001. As the call sign implied, the station carried a smooth jazz format.

Buckley Broadcasting acquired KSMJ in 2001. On November 22, 2011, KSMJ dropped its adult contemporary "Mix 97.7" format and began simulcasting KNZR (1560 AM), to give Bakersfield listeners the choice to hear the talk programming on KNZR on either AM or FM. KSMJ changed to its current KNZR-FM call sign on September 11, 2013.

In 2014, Buckley Broadcasting sold its California stations, including KNZR-AM-FM, to Alpha Media of Portland, Oregon. Alpha Media Chairman Larry Wilson said, "The Buckley clusters in California will be a great addition to the West Coast footprint. Bakersfield is a rich and vibrant city full of live and local opportunities." Alpha Media merged with Connoisseur Media on September 4, 2025.

On October 14, 2025, Connoisseur Media Announced the Bakersfield cluster had been sold to Danny and Kait Hill’s Frequency Media.