Edward Porter Williams (May 10, 1843 – May 4, 1903) was an American businessman who co-founded the Sherwin-Williams Company with Henry Sherwin.

Born in Cleveland, Ohio, he graduated from Cleveland Central High School in 1859, then earned a bachelor's (1864) and master's (1869) degree from Western Reserve College (now Case Western Reserve University).

[1] Edward and his brother Charles joined the Army in 1862, along with the entire Western Reserve College, faculty and student alike.

Edward P. Williams was executive vice president and a member of the board of directors of the company at the time of his death.

Edward Porter Williams is buried at Lakeview Cemetery in Cleveland, Ohio.