Jens-Halvard Bratz (21 April 1920 – 19 January 2005) was a Norwegian businessman and politician for the Conservative Party. He was for many years director of the ironworks Grorud Jernvarefabrikk, and also served in the leadership of several organisations. He was among the people who initiated the Norwegian Glacier Museum. Bratz served as Minister of Industry in the cabinet of Kåre Willoch from its accession in October 1981, until his resignation on 16 September 1983.
Bratz was the son-in-law of the first Secretary-General of the United Nations, Trygve Lie.