Onias I (Hebrew: Honiyya or Honio ben Jaddua) was the son of the Jaddua mentioned in Nehemiah. According to Josephus, this Jaddua is said to have been a contemporary of Alexander the Great. I Maccabees regards Onias as a contemporary of the Spartan king Areus I (309-265 BCE). The Simon the Just extolled in the Wisdom of Sirach and in legend (according to the Hebrew text the son of Jonathan, but according to the Greek text the son of Onias) was probably the son of Onias I or, according to some, of the latter's grandson Onias II.
- Gottheil, Richard and Samuel Krauss. "Onias." Jewish Encyclopedia. Funk and Wagnalls, 1901–1906, which cites to the following bibliography:
- H. P. Chajes, Beiträge zur Nordsemitischen Onomatologie, p. 23, Vienna, 1900 (on the name);
- Herzfeld, Gesch. des Volkes Jisrael, i. 185-189, 201-206;
- Heinrich Grätz, Gesch. 2d ed., ii. 236;
- Emil Schürer, Gesch. 3d ed., i. 182, 194-196; iii. 97-100;
- Niese, in Hermes, xxxv. 509;
- Wellhausen, I. J. G. 4th ed., p. 248, Berlin, 1901;
- Willrich, Juden und Griechen vor der Makkabäischen Erhebung, pp. 77, 109, Göttingen, 1895;
- Adolf Büchler, Die Tobiaden und die Oniaden, pp. 166, 240, 275, 353, Vienna, 1899;
- J. P. Mahaffy, The Empire of the Ptolemies, pp. 217, 353, London, 1895;
- Gelzer, Sextus Julius Africanus, ii. 170-176, Leipsic, 1885;
- Isaac Hirsch Weiss, Dor, i. 130 (on the halakic view of the temple of Onias).
- This article incorporates text from a publication now in the public domain: Jewish Encyclopedia. 1901–1906.