Seamus Kirk has been elected as the new Ceann Comhairle of the Dáil by a margin of 87 votes to 51.
The Louth Fianna Fáil TD succeeds John O'Donoghue, who resigned earlier today over the controversy surrounding expenses he incurred while in office.
Mr Kirk has represented his constituency in the Dáil since 1982.
In his opening remarks as Ceann Comhairle, he told TDs he would gladly take on board any initiatives to bring about parliamentary reform.
"I am by nature progressive, and will readily embrace and faithfully implement any change to Dáil procedures made by members themselves to the Dáil Reform Subcommittee," Mr Kirk said.
"I look forward as incoming chair of the Houses of the Oireachtas Commission to continue and encourage further modernisation of the parliamentary administration within the current programme of cutbacks already adopted by the commission."