Eric Sidney Fostyn Holland was a New Zealand politician who served as an elected member of the House of Representatives from 1967 to 1981 for the National Party and as a Cabinet Minister in the second and third National governments.

Sir Sidney George Holland was a New Zealand politician who served as the 25th prime minister of New Zealand from 13 December 1949 to 20 September 1957. He was instrumental in the creation and consolidation of the New Zealand National Party, which was to dominate New Zealand politics for much of the second half of the 20th century.