Angus Lewis Macdonald, Canadian lawyer and politician, 12th Premier of Nova Scotia (died 1954)

Angus Lewis Macdonald, popularly known as 'Angus L.', was a Canadian lawyer, law professor and politician from Nova Scotia. He served as the Liberal premier of Nova Scotia from 1933 to 1940, when he became the federal minister of defence for naval services. He oversaw the creation of an effective Canadian navy and Allied convoy service during World War II. After the war, he returned to Nova Scotia to become premier again. In the election of 1945, his Liberals returned to power while their main rivals, the Conservatives, failed to win a single seat. The Liberal rallying cry, "All's Well With Angus L.," was so effective that the Conservatives despaired of ever beating Macdonald. He died in office in 1954.

The premier of Nova Scotia is the first minister to the lieutenant governor of the Canadian province of Nova Scotia and presides over the Executive Council of Nova Scotia. Following the Westminster system, the premier is normally the leader of the political party which has the most seats in the Nova Scotia House of Assembly who is called upon by the lieutenant governor to form a government. As the province's head of government, the premier exercises considerable power.