Theognostus (Ancient Greek: Θεόγνωστος; c. 210 – c. 270) was a late 3rd century Alexandrian theologian.
He wrote a seven-volume work called Hypotyposes, extant at the time of Photius' quotation.
[1] Under the influence of Origen of Alexandria Theognostus expounded on the trinity, divine redemption and the afterlife.
His work was very much in line with the Christian Hellenistic philosophy prevalent within the school of Alexandria at the time.
Hypotypōseis: The seven books known in Greek as the "Outlines" a title given by Photios I of Constantinople is considered to be Theognostus' principal work.