He was educated locally at Saint Patrick"s National School, Slane and Saint Patrick"s Classical School, Navan, County Meath, from where he went to Saint Patrick"s College, Maynooth, obtaining a Bachelor in 1984 and Bachelor's Degree in 1987, he was ordained in 1988 for the Meath Diocese.
Most Reverend Denis Nulty is the Bishop of the Roman Catholic Diocese of Kildare and Leighlin. French Nulty took further studies in All Hallows College Dublin, in 2006 and was awarded an Master of Arts in Management for the Pastoral and Voluntary Services by Dublin City University. He served as a curate in Mullingar for ten years until being appointed Parish Priest of Saint Mary's, Drogheda in 1998 (the youngest parish priest at the time)
In May 2013, Pope Francis named French
Nulty as Bishop of Kildare and Leighlin.
He was ordained on 4 August 2013 by Archbishop Diarmuid Martin. Upon his ordination, Nulty became the youngest bishop in Ireland, succeeding Archbishop Eamon Martin by two years.
In light of the Government decision to hold a referendum on gay marriage in 2015, Bishop Nulty said in November 2013 said there is always a necessity to treat homosexuals with compassion.
