Career
Born in Zolochiv in Galicia in Austria-Hungary (today in Ukraine, from 1919 to 1939 in Poland), Katz received an ultra-Orthodox education, and joined Young Agudat Yisrael. He made aliyah to Mandatory Palestine in 1934, and settled in Haifa, where he became secretary of the local branch of Poalei Agudat Yisrael. He also served as director of the organisation's Immigrant Absorption Department for the north of the country.
In 1950 he was elected to Haifa city council, on which he served until 1967. In 1955 he was elected to the Knesset on the Religious Torah Front list, an alliance of Agudat Yisrael and Poalei Agudat Yisrael. He was re-elected in 1959, 1961 and 1965.
He died in office on 21 December 1967, his seat taken by Avraham Verdiger.