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Chauci (in MSS. also Chauchi, Cauci; cf. upon the signif. and orthog. of the word, Rup. Tac. G. 35; poët. Chăūci or Chăȳci, trisyl., Luc. 1, 463; Claud. ap. Eutr. 1, 379; and in sing.: Căȳco, id. Laud. Stil. 1, 225), ōrum, m., = Καῦχοι, Ptolem.; Καῦκοι, Strab., a people in Lower Germany, on the ocean, from the Ems to the Elbe, in the south to the region of Oldenburg and Bremen, divided into majores and minores, Vell. 2, 106, 1; Tac. G. 35; id. A. 2, 24; 11, 19; id. H. 4, 79; 5, 19; Suet. Claud. 24; Plin. 4, 24, 28, § 99; 16, 1, 1, § 2; on account of his conquest of them, Gabinius Secundus received the cognomen Chaucius, Suet. Claud. 24.