Councillor Declan Doocey was elected yesterday ahead of Sinn Féin's Pat Fitzgerald.
He is the fifth and final mayor of the first term of the amalgamated Waterford City and County Council.
Fine Gael's Declan Doocey was proposed by his party colleague Damien Geoghegan and seconded by Fianna Fáil's James Tobin.
Current and former senators, the bishop of Waterford and Lismore as well as Councillor Doocey's family members gathered to pack out City Hall for thre occasion.
Councillor Doocey, from Lismore, won out over Sinn Féin's Pat Fizgerald, besting him by 20 votes to 7.
The Lismore native says it was an emotional day.
Declan Doocey says he wants to work at becoming a representative of Waterford city.
Fianna Fáil's John O'Leary was elected unopposed as Deputy Mayor.
