Throughout history there have been a number of people named William Kelly.

• William Kelly (inventor), an American inventor of a steel smelting process
• William Kelly (senator), an American Senator from Alabama
• William Kelly (fundraiser), a Canadian business person who was an integral part of the Big Blue Machine
• William Kelly, Sr. (politician), a mayor of Flint, Michigan
• Bill Kelly (politician) politician in Flint, Michigan
• William Kelly (artist), an American artist
• William Kelly (muralist), one of the Bogside Artists
• William Kelly (Australian politician), a 20th century Australian politician
• William Kelly (Guernsey and Blackheath) (1821 - 1906), classicist and Biblical expositor
• William Kelly (New Zealand) (1840 - 1907), New Zealand politician
• William Kelly (Mister International), Mister International 2003, representing Sharjah, U.A.E.
• Bill Kelly (football), American football player
• Bill Kelly (writer), American screenwriter
• Bill Kelly (musician), American musician of The Buoys and Dakota
• Bill Kelly (chairman), former chairman of Middlesbrough FC between 1934 and 1950.

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