Elisha Strong Wadsworth (May 10, 1813 – November 25, 1890) was a merchant from New Hartford, Connecticut. He co-founded the Wadsworth, Dyer & Chapin company in Chicago, Illinois with his brother Julius and Thomas Dyer. The operation was one of the first successful firms in Chicago, trading in dry goods, grain, and packaged meat. Wadsworth was also the president of the Chicago and Aurora Railroad, later serving on the board of directors of the Galena and Chicago Union Railroad when the two lines were merged. Wadsworth also served as a director of a predecessor to the Chicago, Milwaukee, St. Paul and Pacific Railroad. Wadsworth is the namesake of Wadsworth, Illinois.
Elisha Strong Wadsworth was born in New Hartford, Connecticut on May 10, 1813. The Wadsworths were a prominent family in Connecticut; his great uncle Jeremiah was a government official for the Continental Army and his father Tertius was a wealthy real estate developer. Early in his adulthood, E. S. wadsworth opened a store in Charleston, South Carolina with his brother Julius.
In the spring of 1836, E. S. decided to move west to the new city of Chicago, Illinois to sell his goods. His brother followed, and the two purchased several land holdings that June. They formed a business partnership with Thomas Dyer, opening a store on Lake Street in the F. C. Sherman building. The Wadsworths and Dyer then built their own buildings and warehouse on South Water Street, between Clark and La Salle. They built a meatpacking house south of the Twelfth Street Bridge and marble-fronted stores on the corner of Lake and Wabash. Julius Wadsworth fell ill and retired from the partnership to recover in Europe. He was replaced in the business with John Putnam Chapin. Wadsworth, Dyer & Chapin became one of Chicago's leading businesses, selling dry goods, storing and trading grain, managing real estate, and packing beef and pork.