Dublin City Manager John Tierney has been appointed Managing Director of Irish Water.
The announcement was made by Bord Gáis, within which the new water utility is being established.
During his 35-year career in local government, Mr Tierney has worked in nine different local authorities across the country.
"In his last three jobs as Manager in Dublin City, Fingal and Galway City, John has been heavily involved in the planning and delivery of major water services programmes," Rose Hynes, Chairman of Bord Gáis said.
"He has also prioritised water services under Dublin City Council's smart city programme. John has the qualities and experience to lead the creation and operation of a national water utility that will meet the needs of all public water users," she concluded.
John Tierney takes up the position in late April and his appointment is initially for a three-year term.