Alexander Martin (1740 - 10 November 1807) was the Federalist governor of the U.S. state of North Carolina from 1782 to 1784 and from 1789 to 1792.

Martin was born in Hunterdon County, New Jersey and attended the College of New Jersey (later Princeton University), graduating with an B.A. degree in 1756 and an M.A. in 1759. He moved to North Carolina around 1761 and became a practicing attorney in Guilford County.

In 1774, Martin was elected to the Assembly in North Carolina. He was commissioned a lieutenant colonel in the Continental Army in 1775, and in 1776 was promoted to colonel in command of the 2nd North Carolina Regiment. He helped defend against the first British attempt to take Charleston, and then fought at the battles of Brandywine and Germantown. He was accused of cowardice and court-martialed for his conduct at Germantown. Although acquitted, he was compelled to resign his commission. He returned to North Carolina, where he served in the North Carolina Senate during periods from 1778 to 1782, in 1785, and from 1787 to 1788.

In 1782, the General Assembly elected him North Carolina Governor; he served until 1785. Martin was a delegate to the Constitutional Convention of 1787. He was elected Governor by the legislature once again in 1789, 1790, and 1791.

Martin was elected to the United States Senate and served there for a single term from 1793 to 1799. As an Anti-Federalist member of Congress, he opposed the Jay Treaty but supported the Alien and Sedition Acts. Also an advocate for education, Martin served on the Board of Trustees of the University of North Carolina at Chapel Hill from 1790 until his death in 1807.

The General Assembly refused to appoint him to a second term in the U.S. Senate; Martin then retired to his North Carolina farm. He did return to politics during the last years of his life, serving from 1805 to 1807 as Speaker of the North Carolina Senate.

Alexander Martin (March 14, 1842 - April 13, 1921) was a Canadian politician.

Born in Springton, Prince Edward Island, Martin was educated at the Common Schools, the Normal School and Prince of Wales College. A farmer and merchant by occupation, he was first elected to the Legislative Assembly of Prince Edward Island in a 1884 by-election and re-elected in the 1886 general election. A Conservative, he was elected to the Canadian House of Commons for the electoral district of East Queen's in the general elections of 1896 and, in 1900, he lost the seat on a recount before a judge. He was an unsuccessful candidate at a by-election held in 1901, but was elected again in the general elections of 1904. He was defeated in 1908 and again in 1917.