# Boo

Boo or BOO may refer to:

## Places

* Boo (Aller), parish in Asturias, Spain
* Boo, standard abbreviation for the constellation Boötes
* Boo, Ghana, a town in Lawra District in the Upper West RegionDeja
* Boo, Guinea, in Nzérékoré Prefecture; see List of schools in Ghana
* Boo, Sweden, locality in Stockholm County
* Bodø Airport in Norway, IATA airport code BOO
* Boo Islands, West Papua, Indonesia

### Station

* Code for Bogor railway station

## People

* Boo (name), a list of people with the given name, nickname or surname
* Betty Boo (born 1970), English singer, songwriter and pop rapper Alison Moira Clarkson
* Gangsta Boo (1979–2023), American rapper
* Sabrian "Boo" Sledge, half of the American hip hop duo Boo & Gotti
* Ben Okello Oluoch, Kenyan politician and host of the radio program Kogwen gi BOO

## Arts, entertainment, and media
### Fictional characters

* Boo, a ghost character in Mario franchise
* Boo, a hamster belonging to Minsc in Baldur's Gate, and a character in Megatokyo
* Boo, a character in the Malaysian animated television series Boo & Me
* Boo, a character in the manga and anime Crayon Shin-chan
* Boo, a human baby girl in the animated film Monsters, Inc.
* Boo, Carrie Black's nickname in Orange Is the New Black
* Boo! (comic strip), a character in the British comic The Dandy created by Andy Fanton
* Majin Boo, an anime and manga character in Dragon Ball
* Boo Radley, a character in the novel To Kill a Mockingbird and its adaptations
* Boo, the title character in Boo! (TV series)
* Boo, a pet robot quadruped creature in Remy & Boo

### Films

* Boo (2005 film), a horror film
* B.O.O.: Bureau of Otherworldly Operations, an animated film
* Boo! (1932 film), a 1932 comedy film
* Boo! (2018 film), a 2018 horror film
* Boo (2023 film), an Indian Telugu language horror film
* Boo! A Madea Halloween, a 2016 horror comedy film
** Boo 2! A Madea Halloween, a 2017 horror comedy film

### Music

* Boo! (album), by Was (Not Was)
* Boo! (band), a South African band
* Born of Osiris, an American heavy metal band
* "Boo", by Moloko from Do You Like My Tight Sweater?

### Television

* Boo! (TV series), a 2003–2006 British children's series
* "Boo" (CSI: NY), a 2007 episode
* "Boo" (Dark Angel), a 2001 episode
* "Boo!" (Frasier), a 2004 episode
* "Boo!" (Roseanne), a 1989 episode
* "Boo!" (Space Ghost Coast to Coast), an episode of Space Ghost Coast to Coast
* "Boo", a season 4 episode of Servant (TV series)

### Literature

* The Boo (book), by Pat Conroy

## Computing and technology

* Boo (programming language)
* .boo (top-level domain), a top-level domain owned by Google
* .boo (file extension), a binary-to-text encoding system

## Languages

* Boo dialect, of the Teke-Ebo or Central Teke language, spoken in Congo and the Democratic Republic of the Congo
* Boko language (Benin), also called Boo language
* Bomu language, also called Boo, or Western Bobo Wule language
* Bozo language, ISO 639 code boo, spoken in Mali

## Other uses

* Better Off Out, a political campaign
* Black Oxygen Organics, a defunct multi-level marketing company
* Bladder outlet obstruction
* Boo (dog) (2006–2019)
* Boô, a Saxon cattle shed
* "Boo", a term of endearment
* Boo FF, a Swedish football club in Boo, Stockholm
* Boo.com, a clothing company
* Build Own Operate, a form of infrastructure project operating concession
* Booing, an insult