Edwin Dennison Morgan (February 8, 1811 - February 14, 1883) was governor of New York in the USA from 1859 to 1862. He served in the United States Senate from 1863 to 1869.

Morgan was born in Washington, Massachusetts on 8 February 1811. He began his business career as a grocer in Hartford, Connecticut. He became a partner with his uncle and served on the city council. In 1836 he relocated to New York City and became a succssful wholesaler, broker, and banker. He was a city alderman, state senator (1850 -1853), and state commissioner of immigration.

Because of his wealth, Morgan was highly influential in Republican Party politics of his time and served as chairman of the Republican National Committee. Known for generous contributions to charities and causes, he contributed large sums to the Union Theological Seminary.

Edwin Morgan was a cousin to Morgan G. Bulkeley, a governor of Connecticut.

Morgan died in New York City on 14 February 1883.