CBSI may refer to:
CBSI-FM, Sept-Îles, Quebec, Canada; a French-language radio station CBS Interactive, a division of the American media corporation CBS. ConAmor Broadcasting Systems, Inc. (CBSI), former name of DCG Radio-TV Network Community Bank System, Inc. (CBSI), a U.S. national bank network Catholic Boy Scouts of Ireland (CBSI), Irish scouting organization Clan Buchanan Society International (CBSI) the international society for the Scottish Clan Buchanan Cellular Business Systems Inc. (CBSI) billing company founded by Arlene Harris
See also CBS (disambiguation) BSI (disambiguation) WBSI (disambiguation) KBSI (disambiguation)