CLO may refer to:
Institutional positions Chief Learning Officer, training post Chief Legal Officer of a legal department
Locations Alfonso Bonilla Aragón International Airport, Palmira, Colombia, IATA code Civic Light Opera (disambiguation), several US theatres Cło, Świętokrzyskie Voivodeship, Gmina Kazimierza Wielka, Kazimierza County, Poland Coolaroo railway station, Melbourne
Organizations Central Legal Office of NHS Scotland Conselh de la Lenga Occitana (Occitan Language Council) Congress of Labor Organizations, a trade union in the Philippinnes Cooperative Living Organization, a housing cooperative in Gainesville, FL, US Federation of Civil Service Organizations (Centrale van Landsdienaren Organisaties), Suriname
Technical terms Collateralized loan obligation, an asset-backed security Color Light Output or color brightness of a projector
People Alberto Clò (born 1947), Italian politician and academic Clodovil Hernandes (1937–2009), Brazilian fashion designer, TV presenter and politician nicknamed Clô
Other uses Campylobacter-like organism test, rapid test for the most common cause of gastric ulcer Chlorine monoxide, a chemical radical Clo the Cow, advertising mascot of Clover Stornetta Farms Hypochlorite ion (ClO−), composed of chlorine and oxygen Unit of clothing insulation
See also Cee Lo