William Walter Webb (November 20, 1857 – January 15, 1933), was the sixth Episcopal Bishop of Milwaukee, from 1906 till 1933.

In 1885 he obtained his Master of Arts from Trinity College, whilst also studying at Berkeley Divinity School from where he graduated in 1885.

Webb was ordained deacon on June 3, 1885, by Bishop William Woodruff Niles of New Hampshire.

In 1889 he became rector of St Elisabeth's Church in Philadelphia, while in 1892, he was elected Professor of Dogmatic Theology at Nashotah House.

He was consecrated in All Saints' Cathedral on February 24, 1906, and succeeded as diocesan bishop upon Isaac Lea Nicholson's death on October 29, 1906.