Geo- is a prefix derived from the Greek word γη or γαια, meaning "earth", usually in the sense of "ground or land”.
GEO or Geo may also refer to:
Arts, entertainment, and media GEO (magazine), a popular scientific magazine Geo (Ninjago), character from Ninjago Geo Stelar, the protagonist in Mega Man Star Force Geo TV, a pay television channel in Pakistan
Brands and enterprises Geo (automobile), a defunct brand of entry-level cars produced by General Motors Georgetown University, abbreviated as Geo. in Bluebook GEO Group, a prison corporation
Computing and science Geo (microformat), a microformat for marking up geographical coordinates in (X)HTML Generative engine optimization, the marketing practice of influencing the results provided by large language models Gene Expression Omnibus, or GEO, a National Center for Biotechnology Information database for gene expression GEO 600, a detector for gravitational radiation Geo URI, an IETF proposed standard for making URIs for physical locations Geosynchronous Equatorial Orbit, an orbit used for satellites that remain at a fixed position above the ground
Groups and organizations General Education Officer, the basic rank of teachers of the Ministry of Education in Singapore Group on Earth Observations, an intergovernmental organization Grupo Especial de Operaciones, a special SWAT division of the Spanish police
People Geo Bogza, Romanian poet and essayist Geo Dumitrescu, Romanian poet Geo Rutherford, American artist and TikToker George (given name), commonly abbreviated Geo. Christian Geo Heltboe, Danish comedian known by his middle name
Places Geo (landscape), a creek (inlet) or gulley in the Orkney and Shetland Islands GEO, the IOC country code and three letter country code for Georgia (country), in Eurasia GEO, the IATA code for Cheddi Jagan International Airport Estadio Casas GEO, stadium in Mexicali, Mexico