Gerald Molloy (born at Mount Tallant House, near Dublin, 10 September 1834; died at Aberdeen, 1 October 1906) was an Irish Roman Catholic priest, theologian and scientist.
He was barely 23 when in 1857 he became professor of theology at Maynooth, and continued to hold that chair until 1874, when he accepted the professorship of natural philosophy at the Catholic University of Ireland.
In 1883 he succeeded Dean Henry Neville of Cork as Rector of the Catholic University of Ireland, which office he occupied up to the day of his death.
Under the auspices of the Royal Dublin Society, of whose council he was a member, he delivered a series of lectures on natural science, and in particular on electricity.
Among his works are: He also translated a number of passages from Dante's Purgatorio, wrote of the Passion Play at Oberammergau, and was a frequent contributor to magazines.