John of God, Religious
- Illustrated hagiography.
- http://www.saintpatrickdc.org/ss/0308.htm#john

Juan Ciudad (Saint John of God)
- Short biography that features paintings of the saint by modern artist Werner Horvath.
- http://members.telering.at/pat/juan1.htm

The Hospitaller Brothers of St. John of God: St. John of God
- Short illustrated biography.
- http://www.hospitallers.org/stjohnofgod.aspx

Catholic Online: St. John of God
- Pious reflection on his life.
- http://www.catholic.org/saints/saint.php?saint_id=68

Vietnamese Eucharistic Youth Society: St. John of God
- The story of the Portuguese saint. Suitable for children.
- http://www.tntt.org/vni/tlieu/saints/St0308.htm

St. John of God: The Waif, 1495-1550
- Biography, by Alban Goodier.
- http://www.ewtn.com/library/MARY/STJOHN.htm

Soldier's Transition from Death to Life
- A biographical article on St. John of God, by Mary Rose Donnelly.
- http://gvanv.com/compass/arch/v1304/saint.html

Signature of St. John of God
- Image of the saint's signature from a letter of 1550.
- http://www.iol.ie/~sjog/images/logosig.htm

Catholic Encyclopedia: St. John of God
- Portuguese shepherd, soldier, bookseller, finally found his niche caring for the health of the poor in Granada, became de facto founder of a religious order, d. 1550.
- http://www.newadvent.org/cathen/08472c.htm

John of God
- Illustrated profile.
- http://www.catholic-forum.com/saints/saintj15.htm