This is a list of Mayors of Cardiff, Wales. The first mayor recorded for Cardiff was in 1126 though the title was generally given to the Constable or military governor of Cardiff Castle. The first elected Mayor of Cardiff took office in 1835 (elected by the members of the council), the same year the first council elections were held. When Cardiff was granted city status in 1905 the post holder was given the title Lord Mayor.
The years given are for when each mayor took office. Most mayoral terms extended into the following year.