Theoctistus (2), bp. of Caesarea in Palestine, who on Origen's visit to Palestine received him at Caesarea and, like Alexander of Jerusalem, permitted him, though still a layman, to preach before him (Phot. Cod. 118). On the remonstrance of Origen's bishop, Demetrianus, he joined with Alexander in a letter defending their conduct (Eus. H. E. vi. 19). Later, c. 230, Theoctistus and Alexander ordained Origen ( ib. vi. 8, 23). Theoctistus probably died when Xystus was bp. of Rome 257–259, and was succeeded by Domnus ( ib. vii. 14). Clinton, Fasti Romani, i. 245, 271, 287, No. 83; Le Quien, Or. Christ. iii. 541.

[E.V.]