John Duncan MacEachern (born November 8, 1946) is a former educator and political figure in Nova Scotia, Canada.
He represented Cape Breton East in the Nova Scotia House of Assembly from 1988 to 1998 as a Liberal member.
MacEachern entered provincial politics in the 1988 election, defeating Progressive Conservative Bruce Clark by 1,725 votes in the Cape Breton East riding.
[4] On June 11, 1993, MacEachern was appointed to the Executive Council of Nova Scotia as Minister of Education and Culture.
[7] When Russell MacLellan won the leadership of the Liberal party and became Premier, MacEachern announced he was leaving politics and returning to teaching.