John O'Hagan (born 19 March 1822 at Newry, County Down; died 10 November 1890 at Dublin) was an Irish lawyer and writer. He was also an Irish Republican and Younger Irelander, and was a founding member of the first Irish conference of the Society of Saint Vincent de Paul.
He was educated in the day-school of the Jesuit Fathers, Dublin, and in Trinity College, Dublin, graduating in 1842. An advocate of Catholic university education, he contributed to the Dublin Review (1847) an article which the Catholic Truth Society of Ireland reprinted under the title "Trinity College No Place for Catholics".
In 1842 he was called to the Bar and joined the Munster Circuit. In 1861 he was appointed a Commissioner of National Education, and in 1865 he became Q.C. The same year he married Frances, daughter of the first Lord O'Hagan.
He was an earnest Catholic, as is shown in many of his writings, such as "The Children's Ballad Rosary". His poems, "Dear Land", "Ourselves Alone", etc., were among the most effective features of The Nation in its brilliant youth.
- John Kells Ingram - Sonnets and Other Poems - Adam & Charles Black, London 1900, page 9
- This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "John O'Hagan". Catholic Encyclopedia. New York: Robert Appleton. The entry cites:
- The Irish Monthly, XVIII;
- Duffy, Four Years of Irish History