The Lord Mayor of Dublin is the honorary title of the chairperson of Dublin City Council which is the local government body for the city of Dublin, the capital of Ireland. The incumbent, since June 2023, is councillor Daithí de Róiste. The office holder is elected annually by the members of the Council.

Dublin City Council is the local authority of the city of Dublin in Ireland. As a city council, it is governed by the Local Government Act 2001. Until 2001, the authority was known as Dublin Corporation. The council is responsible for public housing and community, roads and transportation, urban planning and development, amenity and culture and environment. The council has 63 elected members and is the largest local council in Ireland. Elections are held every five years and are by single transferable vote. The head of the council has the honorific title of Lord Mayor. The city administration is headed by a Chief Executive, Richard Shakespeare. The council meets at City Hall, Dublin.