Xainctonge, Venerable Anne de
- Foundress of the Society of the Sisters of St. Ursula of the Blessed Virgin.
- http://www.newadvent.org/cathen/15728a.htm

Xaverian Brothers
- Congregation of the Brothers of St. Francis Xavier. An institute of laymen, founded under episcopal approbation by Theodore James Ryken, in Belgium, in the year 1839.
- http://www.newadvent.org/cathen/15728b.htm

Ximenez de Cisneros, Francisco
- Franciscan, cardinal, and Primate of Spain, born at Torrelaguna in New Castile. 1436-1517)
- http://www.newadvent.org/cathen/15729b.htm

Ximenes, Didacus
- A Spanish Dominican of the sixteenth century; noted as a theologian, philosopher, and astronomer.
- http://www.newadvent.org/cathen/15729a.htm