IAPYDES (i-ahp'-ii-das) or IAPODES, one of the three chief peoples of Roman Illyria. They occupied the interior of the country on the north between the Arsia and Tedanius, which separated them from the Liburnians. Their territory formed part of the modern Croatia. A mixed race of Celts and Illyrians, who used Celtic weapons and tattooed themselves, they were warlike and addicted to plundering expeditions. In i 29 B.C. C. Sempronius Tuditanus celebrated a triumph over them, and in 34 B.C. they were finally crushed by Augustus.
See Strabo iv. 207, vii. ; Dio Cassius xlix. 3 5 ; Appian, Illyrica, io, 14, 16; Livy, Epit. lix. 131 ; Tibullus iv. 1. io8; Cicero, Pro Balbo, 14.