Ilo, ILO or variations may refer to:
Places
- Ilo Province, one of three provinces that make up the Moquegua Region in Peru
- Ilo District
- Ilo, Peru, a port in southern Peru
- Lake Ilo, a man-made lake in Lake Ilo National Wildlife Refuge, North Dakota, United States
Organizations
- iLo Technologies, a Walmart consumer electronics house brand
- ILO-Motorenwerke, a former German manufacturer of two-stroke engines
- International Labour Organization, a specialized agency of the United Nations that deals with labour issues
- International Left Opposition, an opposition group within the Comintern
People
- Dhimitër Ilo, one of the signatories of the Albanian Declaration of Independence
- Miikka Ilo, Finnish footballer
- Spiridon Ilo (1876-1950), one of the founding fathers of Albania
- Ilo Wallace (1888-1981), wife of Henry A. Wallace, the 33rd Vice President of the United States
Other uses
- Alternative name for the Ido constructed language
- HP Integrated Lights-Out (iLO), the management processor used on most Hewlett-Packard ProLiant servers
- Iloilo International Airport's IATA code
- Injection-locked oscillator, a type of oscillator used in LC circuits
- International Linguistics Olympiad, part of International Science Olympiads
- ISO 639-2 and ISO 639-3 code for Ilokano language, spoken in the Philippines