Willum Þór Þórsson
- Date of Birth: March 17th, 1963
- Party: Progressive Party
- Member of Althingi for the Southwest Constituency since 2013.
- Member of the Constitutional and Supervisory Committee since 2013.
- Member of the Economic Affairs and Trade Committee since 2013 (2nd Deputy Chairman since 2013).
- Member of the Icelandic Delegation to the EFTA and EEA Parliamentary Committees since 2013.
- Member of the EU-Iceland joint Parliamentary Committee since 2013.
- Member of the Judicial Affairs and Education Committee 2013.