William McAlpine may refer to:

• William J. McAlpine (1812–1890), American civil engineer
• Sir William McAlpine, 6th Baronet (1936–2018), British businessman
• William McAlpine (tenor) (1922–2004), Scottish tenor
• William H. McAlpine (1847-1905) American minister and educator

• McAlpine Locks and Dam, named for William McAlpine, district engineer for the Corps of Louisville, Kentucky

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.