WACZ may refer to:
WZON, a radio station (620 AM) licensed to Bangor, Maine, which held the call sign WACZ from 1981 to 1983 WDXT, a radio station (93.9 FM) licensed to Dansville, New York, which held the call sign WACZ from 1990 to 1992 WACZ format, a compressed ZIP-based file format for storing Web archive data as WARC files along with indexing metadata