William H. McLean (December 3, 1835 – February 3, 1927) was an English professional baseball umpire born in Preston, Lancashire.

[1] McLean was the umpire in the first official National League game, played at the Jefferson Street Grounds in Philadelphia on April 22, 1876.

John Radcliffe of Philadelphia had offered him $175 in exchange for favoring Chicago, and had implicated teammates Bill Craver, Candy Cummings, Nat Hicks, and Denny Mack, the manager.

McLean called three no-hitters during his career: Hugh Daily's on September 13, 1883, Larry Corcoran's on June 27, 1884, and Pud Galvin's on August 4, 1884.

[3] McLean died at age 91 in Philadelphia, and is interred at Holy Cross Cemetery in Yeadon, Pennsylvania.