KFIZ may refer to:

• KFIZ (AM), a radio station (1450 AM) licensed to Fond du Lac, Wisconsin, United States
• KFIZ-TV, a defunct television station (channel 34) in Fond du Lac, Wisconsin, United States
• WFON, a radio station (107.1 FM) licensed to Fond du Lac, Wisconsin, United States, which used the call sign KFIZ-FM from November 1993 to February 2004

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