John Horace Panizza (24 March 1931 – 31 January 1997) was an Australian politician. Born at Southern Cross, Western Australia, he was a farmer and property developer, and served on Yilgarn Shire Council. In 1987, he was elected to the Australian Senate as a Liberal Senator for Western Australia. He held his Senate seat until his death in 1997; Ross Lightfoot was appointed to replace him.