Theo is a feminine and masculine given name and nickname.
Theo may also refer to:
Geography Theo, Mississippi, United States, an unincorporated community Théo River, a tributary of the Turgeon River in Quebec, Canada
People Allan Théo, French singer born Alain Rouget in 1972 Louise Théo, French operetta singer Cécile Piccolo (1854–1922) Michael Theo (formerly Theoklitos) (born 1981), Australian soccer goalkeeper
Arts and entertainment Theo (film), a 2013 film starring Dakota Johnson Theo, a lion in the live-action PBS Kids series Between the Lions
Other uses THEO (Testing the Habitability of Enceladus's Ocean), a proposed spacecraft mission Theo (dog) (2009–2011), a British Army bomb-detection dog awarded the 2012 Dickin Medal for bravery Theo Chocolate, a chocolatier in Seattle, Washington, US Theo, also known as "ADT", short for "theoretical loss" or "Average Daily Theoretical", a calculation used to determine gamblers' casino comps
See also All pages starting with "Theo" All pages starting with "Théo"