Hilliard Harris William Beyerstein (November 3, 1907 – September 23, 1990) was a Canadian chiropractor and politician.
Born in Meeting Creek, Alberta, Beyerstein first ran for the House of Commons of Canada as a Social Credit Party candidate in the 1949 federal election.
Beyerstein moved to British Columbia and ran for another term in office in the 1957 federal election in the district of Vancouver South but was defeated by Ernest James Broome.
Parliament dissolved a year later and Broome and Beyerstein would run against each other for the second time in the 1958 federal election.
He would attempt to run for office for the last time in 1962 federal election in the Burnaby—Richmond district but lost to Bob Prittie.