Sir Richard Butler was an Australian politician. He was a member of the South Australian House of Assembly from 1890 to 1924, representing Yatala (1890–1902) and Barossa (1902–1924). He served as Premier of South Australia from March to July 1905 and Leader of the Opposition from 1905 to 1909. Butler would also variously serve as Speaker of the House of Assembly (1921–1924), and as a minister under Premiers Charles Kingston, John Jenkins and Archibald Peake. His son, Richard Layton Butler, went on to serve as Premier from 1927 to 1930 and 1933 to 1938.

The premier of South Australia is the head of government in the state of South Australia, Australia. The Government of South Australia follows the Westminster system, with a 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.