Ifo or IFO may refer to:
Places Ifo, Ogun State, a local government area in Ogun State, Nigeria Ivano-Frankivsk International Airport in Ivano-Frankivsk, Ukraine, their IATA airport code Ifo Refugee Camp, UNHCR refugee camp in Kenya Ifo Island, Antarctica
Objects Identified flying object, as opposed to unidentified flying object (UFO) Interferometer, an instrument that superimposes waves to cause interference
Other IFO file, a file type used on DVD-Video Ifo Ekpre-Olomu (born 1993), American football player Ifo Institute for Economic Research () in Munich, Germany Ifo language, found in Vanuatu Battle of Ifo, battle in the 2012 Malian Civil War