CLO may refer to:
Clonazepam, sold under the brand name Klonopin among others, is a medication used to prevent and treat seizures, panic disorder, and for the movement disorder known as akathisia.
Clostridium difficile infection (CDI) is a symptomatic infection due to the spore-forming bacterium, Clostridium difficile.
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.
Cloud computing is a type of Internet-based computing that provides shared computer processing resources and data to computers and other devices on demand.
Clothing (also called clothes and attire) is fiber and textile material worn on the body. The wearing of clothing is mostly restricted to human beings and is a feature of nearly all human societies.
In biology, cloning is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually.
Cloverfield is a 2008 American found footage monster horror film directed by Matt Reeves, produced by J. J.
The Cloak of Levitation is a fictional item appearing in American comic books published by Marvel Comics.
In meteorology, a cloud is an aerosol comprising a visible mass of minute liquid droplets or frozen crystals, both of which are made of water or various chemicals.