The 2013 Hamilton mayoral election was part of the Hamilton and wider New Zealand local elections. On 12 October 2013, elections were held for the Mayor of Hamilton and other local government roles. The incumbent, Julie Hardaker, ran against seven other candidates and was re-elected with 43.6% of the vote, a 2,911-vote majority over Ewan Wilson who won 35.5%.

The 2013 New Zealand local elections were triennial elections to elect local government officials and District Health Board members, and the membership of other local bodies such as Licensing Trusts. All elections were conducted by postal ballot, with election day being Saturday 12 October 2013.