William Benning Webb (September 17, 1825 – March 13, 1896) was an American politician and attorney who was the Police Superintendent of Washington, D.C., and president of the board of commissioners for the District of Columbia, U.S., from 1886 to 1889.

[2] That year, the capital's Metropolitan Police Department was organized, and Webb was appointed its first superintendent by Mayor Richard Wallach.

The Washington Post said of Webb that "his digest of municipal laws, as affecting the national capital, is regarded as the standard authority.

"[4] In 1885, upon the vacancy of Joseph Rodman West from his seat on the D.C. Board of Commissioners, President Grover Cleveland surprised the city establishment by offering the appointment to the popular and respected Webb, who accepted and joined the commission for its sixth session in July 1885.

When board president James Barker Edmonds declined reappointment on April 1, 1886, Cleveland raised Webb to the position.