Bishop John Noonan was born in Limerick, Ireland, and immigrated to New York at the age of 18 and later relocated to Miami where his calling to the priesthood led him to St. John Vianney College Seminary. After graduation, he attended St. Vincent de Paul Regional Seminary and graduated with a Master of Divinity in 1983. On September 23, 1983, he was ordained to the priesthood for the Archdiocese of Miami.
Bishop Noonan has a lifelong passion for Catholic education and forming young people in the faith. He served as supervising principal of Msgr. Edward Pace High School in Miami Gardens as well as supervising principal of St. Brendan High School. After receiving a Master of Education degree from Boston College, he assumed the role as Rector/President at St. John Vianney College Seminary.
Pope Benedict XVI named him auxiliary bishop of Miami, June 21, 2005 and he was ordained to the episcopacy, August 24, 2005 at the Cathedral of St. Mary, Miami. The Holy Father appointed him bishop of Orlando on October 23, 2010.