William Joseph Wivell is an American politician who has served as a member of the Maryland House of Delegates representing District 2A since 2015. A member of the Republican Party, he was previously a member of the Washington County Board of Commissioners from 1998 to 2010, and from 2014 to 2015.

The Maryland House of Delegates is the lower house of the legislature of the U.S. state of Maryland. It consists of 141 delegates elected from 47 districts. The House of Delegates Chamber is in the Maryland State House on State Circle in Annapolis. The State House also houses the Maryland State Senate and the offices of the Governor and Lieutenant Governor of the State of Maryland. Each delegate has offices in Annapolis, in the nearby Casper R. Taylor Jr. House Office Building.