# Leo

Leo is the Latin word for lion. It most often refers to:
* Leo (constellation), a constellation
* Leo (astrology), an astrological sign of the zodiac
The terms Leo or Léo may also refer to:

## Acronyms

* Lateral epitaxial overgrowth – a semiconductor substrate technology
* Law enforcement officer
* Law enforcement organisation
* Louisville Eccentric Observer, a free weekly newspaper in Louisville, Kentucky
* Michigan Department of Labor and Economic Opportunity

## Arts and entertainment
### Music

* L.E.O. (band), a band by musician Bleu and collaborators
* Leo (soundtrack), soundtrack album by Anirudh Ravichander for the 2023 Indian film

### Film

* Leo (2000 film), a Spanish film
* Leo (2002 film), a British-American film
* Leo, a 2007 Swedish film by Josef Fares
* Leo (2012 film), a Kenyan film
* Leo (2023 American film), an American animated musical comedy film
* Leo (2023 Indian film), a Tamil-language action thriller
* Leo the Lion (MGM), mascot of the Metro-Goldwyn-Mayer film studio seen at the beginning of MGM films

### Television

* Leo Awards, a British Columbian television award
* "Leo", an episode of Being Erica
* Léo, fictional lion in the animation Animal Crackers
* Léo, 2018 Quebec television series created by Fabien Cloutier

## Companies

* Leo Namibia, former name for the TN Mobile phone network in Namibia
* Leo Pharma, an international pharmaceutical company, based in Denmark
* Leo Records, an English jazz record label
* Lioré et Olivier, a French aircraft manufacturer from 1912 to 1937
* The Leo Group, a waste-recycling company based in Halifax, England

## People and fictional characters

* Leo (given name), a list of people and fictional characters with the given name or nickname
* Léo, a list of people with the given name
* Leo (surname), a list of people
* Leonid dynasty, also known as the House of Leo, a Byzantine dynasty
* Arakel Babakhanian (1860–1932), known by his pen name Leo, Armenian historian
* Leo (singer) (born 1990), South Korean pop musician
* Léo (footballer, born 1975), full name Leonardo Lourenço Bastos, Brazilian football leftback
* Leo (footballer, born November 1989), full name Leonardo Passos Alves, Brazilian football striker
* Leo (footballer, born December 1989), full name Leandro Mariano da Silva, Brazilian football striker
* Léo (footballer, born 1990), full name Leonardo da Silva Vieira, Brazilian football goalkeeper
* Léo (footballer, born 1992), full name Leonardo José Peres, Brazilian football forward
* Leo (wrestler) (born 1989), Mexican professional wrestler
* Luiz Eduardo de Oliveira or Léo (born 1944), Brazilian comics writer

## Places

* Léo Department, a department or commune of Sissili Province in southern Burkina Faso
** Léo, Burkina Faso, the capital city of Sissili Province and Léo Department
* Leo, a village that was merged into Leo-Cedarville, Indiana, U.S.
* Leo, Ohio, U.S.
* Leo, West Virginia, U.S., a ghost town
* Leo Islands, Nunavut, Canada

## Science and technology
### Astronomy and space exploration

* Low Earth orbit, a satellite path
* Launch and Early Orbit phase, a crucial phase of a space mission
* LEO (spacecraft), a lunar mission

### Biology

* Leo (horse), an American Quarter Horse
* Leonberger or Leo, a breed of dog
* Long-term Ecosystem Observatory, a marine study project
* Leo, an obsolete genus now in Panthera

### Computing

* LEO (computer), the first commercially used computers
* Leo (text editor), a computer program

## Sports

* BC Lions or Leos, a Canadian Football League team
* The PBA Leo Awards, annual Philippine Basketball Association awards

## Other uses

* LEO (website), a group of dual-language dictionaries and discussion forums
* Leo Petroglyph, a series of ancient stone carvings
* Leo clubs, youth branch of Lions Clubs International
* Leotard, a skin-tight one-piece garment.