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 Organizations Central Legal Office of NHS Scotland Conselh de la Lenga Occitana (Occitan Language Council) 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 Other uses Alberto Clò (born 1947), Italian politician and academic 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