The 1915 Wellington City mayoral election was part of the New Zealand local elections held that same year. In 1915, elections were held for the Mayor of Wellington plus other local government positions including fifteen city councillors. John Luke, the incumbent Mayor, retained office tallying just ten votes fewer than he did two years earlier. The standard first-past-the-post electoral method was used to conduct polling.

The Mayor of Wellington is the head of the municipal government of the City of Wellington. The mayor presides over the Wellington City Council. The mayor is directly elected using the Single Transferable Vote method of proportional representation. The current mayor is Tory Whanau, elected in October 2022 for a three-year-term.