The 1961 Commonwealth Prime Ministers' Conference was the 11th Meeting of the Heads of Government of the Commonwealth of Nations. It was held in the United Kingdom in March 1961, and was hosted by that country's Prime Minister, Harold Macmillan. While Commonwealth conferences were normally held biennially, this conference was held after an interval of only a year as the May 1960 conference due to disagreement over South Africa and whether the country should be removed from the Commonwealth due to its policy of racial segregation with Malaya's Prime Minister demanding South Africa's expulsion.