CIX

CIX can refer to:

CIX (website), an online conferencing system that started as an early British dial-up service provider
FAP Captain José Abelardo Quiñones González International Airport, an airport in Peru
Commercial Internet eXchange, a forerunner of the commercial Internet in the US
109 (disambiguation) in Roman numerals
CIX (band), a South Korean boy group
Croatian Internet eXchange, Internet exchange point in Croatia