A'rioch (Heb. Arsyok', אִריוֹך, from the Sanscrit Arjaka, venerable, or perhaps from the Heb. אֲרִי, a lion; Sept. Α᾿ριώχ [v. r. in Daniel Α᾿ριώχης, in Tob. Εἰριώχ], Josephus Α᾿ρίουχος, Ant. 1, 9, 1; Α᾿ρίουχος, Ant. 10:10, 2), the name of two men and one place.
1. A king of Ellasar, confederate with Chedorlaomer against Sodom and Gomorrah (Ge 14:1,9), B.C. cir. 2080 (Jour. Sac. Lit. Jan. 1862). SEE LOT.
2. The captain of the royal guard at the court of Babylon, into whose charge Daniel and his fellow youths were committed (Da 2:14). B.C. 604.
3. A "plain" of the Elymaeans (? Persians), mentioned in the apocryphal book of Judith (1, 6) as furnishing aid to Arphaxad in his contest with Nebuchadnezzar; supposed by Grotius to mean the Oracana (Ο᾿ράκανα) of Ptolemy (6, 2, 11), but more probably borrowed from the first of the above names (see Fritzsche, Handb. in loc.).