St. Theodore Tyro
- Brief summary of his martyrdom.
- http://www.catholic.org/saints/saint.php?saint_id=2226

Theodore Tiro
- Hagiography.
- http://www.saintpatrickdc.org/ss/1109.htm#theo

In Praise of Blessed Theodore, the Great Martyr
- By St. Gregory of Nyssa. With a lengthy introduction. The preformatted line length can make this hard to read.
- http://www.bhsu.edu/artssciences/asfaculty/dsalomon/nyssa/theodore.html

St. Theodore of Amasea
- Soldier saint, martyred in 306. After refusing a court order to sacrifice to the gods, St. Theodore was released for a time of reflection--and burnt a pagan temple.
- http://www.newadvent.org/cathen/14573a.htm

St. Theodore
- Includes ikons, bibliography, and a translation of The Passion of St. Theodore the Recruit.
- http://www.ucc.ie/milmart/Theodore.html