Edward Henry Harriman (February 20, 1848 – September 9, 1909) was an American financier and railroad executive.

Career
Harriman's father-in-law was president of the Ogdensburg and Lake Champlain Railroad Company, which aroused Harriman's interest in upstate New York transportation. In 1881, at age 33, Harriman acquired the small, broken-down Lake Ontario Southern Railroad. He renamed it the Sodus Bay & Southern, reorganized it, and sold it to the Pennsylvania Railroad at a considerable profit. This was the start of his career as a rebuilder of bankrupt railroads.


A 1907 cartoon depicting Harriman and his railroads as subject to federal law and the Interstate Commerce Commission
Harriman was nearly 50 years old when in 1897 he became a director of the Union Pacific Railroad. By May 1898, he was chairman of the executive committee, and from that time until his death, his word was the law on the Union Pacific system. In 1903, he assumed the office of president of the company. From 1901 to 1909, Harriman was also the president of the Southern Pacific Railroad. The vision of a unified UP/SP railroad was planted with Harriman. (The UP and SP were reunited on September 11, 1996, a month after the Surface Transportation Board approved their merger.)

In 1910, the first passenger train crossed the Dumbarton Rail Bridge, a project championed by Harriman.
At the time of his death Harriman controlled the Union Pacific, the Southern Pacific, the Saint Joseph and Grand Island, the Illinois Central, the Central of Georgia, the Pacific Mail Steamship Company, and the Wells Fargo Express Company. Estimates of his estate ranged from $150 million to $200 million. That fortune was left entirely to his wife.