Roche MacGeoghegan (1580 – 26 May 1644), also known as Roque de la Cruz, was a seventeenth-century Irish Dominican prelate and Tridentine reformist.

A member of an aristocratic family from County Westmeath, he obtained a mostly Roman Catholic childhood education before, in his twenties, moving to Iberia and entering the Dominican Order.

[2] From 1614 onwards he was active in Ireland in the service of his Order, promoting and reorganising the Dominicans on the island, who had declined almost to oblivion in the previous century.

[2] For his preaching and organisational efforts he achieved recognition in Continental Europe, for instance when he attended the Dominican chapter meeting at Lisbon in 1618. he was awarded the decree of praesentatus.

[2] At Leuven, MacGeoghegan remained active, successfully lobbying King Philip II for the foundation of a Dominican college in that city.

[5] The new Bishop of Kildare was highly active during his early years and was known for his piety and discipline, wearing chains and a hair-shirt under his clothes.

[2] Contemporary official records however reveal that in the 1640s Bishop MacGeoghegan's health declined and that he became paralysed, remaining is such a condition for an extended period before his death.