Henry Ayers, English-Australian politician, 8th Premier of South Australia (born 1821)

Sir Henry Ayers was the eighth Premier of South Australia, serving a record five times between 1863 and 1873.

The Premier of South Australia is the head of government in the Australian state of South Australia. The Government of South Australia follows the Westminster system, with the Parliament of South Australia acting as the legislature. The Premier is appointed by the Governor of South Australia, and by modern convention holds office by virtue of their ability to command the support of a majority of members of the lower house of Parliament, the House of Assembly.