Lawrence Sidney Eagleburger (born August 1, 1930) is an American statesman and former career diplomat, who served briefly as the United States Secretary of State under President George H. W. Bush. Previously, he had served in lesser capacities under Presidents Richard Nixon, Jimmy Carter, Ronald Reagan, and George H. W. Bush.

Originally hailing from Milwaukee, Wisconsin, he graduated from high school in Stevens Point, then attended Stevens Point State College (now the University of Wisconsin-Stevens Point), before earning his bachelor's and master's degrees from the University of Wisconsin-Madison. During his time at Wisconsin, he joined Alpha Sigma Phi Fraternity. Eagleburger also served in the United States Army from 1952 to 1954, attaining the rank of First Lieutenant. In 1957, he joined the US Foreign Service, and served in various posts in embassies, consulates, and the State Department. From 1961 to 1965 he served as a staffer at the US Embassy in Belgrade, Yugoslavia.

Starting in 1969, he served in the Nixon administration as an assistant to National Security Advisor Henry Kissinger. He stayed in this appointment until 1971; thereafter he took on several positions, including advisor to the US Mission to North Atlantic Treaty Organization in Brussels, and, following Kissinger's appointment as Secretary of State, a number of additional posts in the State Department.