CAO is the bizspeak acronym for Chief Accounting Officer. Along with COO, CIO, CFO and CEO, they are part of today's alphabet soup of business. This page is a candidate to be copied to Wiktionary. ... CIO may mean: Chief Information Officer, a corporate title Congress of Industrial Organizations, a US trade union confederation the Central Imagery Office, a predecessor organization of the National Geospatial-Intelligence Agency cry it out, usually in the context of babies and their (lack of) sleeping habits. ... CFO is usually short for Chief Financial Officer, but may also mean: Carrier frequency offset Ceramic fiber optics Chief Fire Officer Chief of Flight Operations Conselho Federal de Odontologia (cfo. ... Chief Executive Officer (CEO) is the job of having the ultimate executive responsibility or authority within an organization or corporation. ... Literally, alphabet soup is a kind of soup containing noodles shaped like the letters of an alphabet. ...