Oberndorfer, Celestin a German Roman Catholic theologian, was born at Landshut in 1724. He joined the Benedictines, and became successively professor of logic, then of natural philosophy' and afterwards of theology in the College of Freysing. He died in 1765. He wrote, Scholae catholicorum, tum philosophia, turn theologia propter suam, quam in docendo usurpant, etc. (Freysing, 1756, 2 pts. 4to): — Resolutiones ex psychologia et theologia naturali (ibid. 1758, 4to): — Brevis apparatus eruditionis de fontibus theologice (Augsb. 1760, 5 pts. 4to): — Theologia dogmatico — historico — scholastica (Freiburg, 1762-1765, 5 vols. 8vo): — Systemna theologice dogmatico- historicocriticum (Freysing, 1762-1765, 5 vols. 8vo); Zacher added seven more volumes to this work. See Baader, Lexikon Baierischer Schriftsteller; Meusel, Lexikon.