The 1905 Wellington mayoral election was part of the New Zealand local elections held that same year. In 1905, elections were held for the Mayor of Wellington plus other local government positions including fifteen city councillors. The polling was conducted using the standard first-past-the-post electoral method.
John Aitken, the incumbent Mayor did not seek re-election. He was succeeded by Thomas William Hislop, who was elected to office as Mayor of Wellington, beating defeating five other candidates.