Big O
# Big O

Big O or The Big O may refer to:

## Fiction

* The Big O, a 1999 Japanese animated TV series

## Mathematics and computing

* Big Omega function (disambiguation), various arithmetic functions in number theory
* Big O notation, asymptotic behavior in mathematics and computing
   * Time complexity in computer science, whose functions are commonly expressed in big O notation

## People

* Omar Gooding (born 1976), American actor, rapper, voice artist and comedian
* Oliver Miller (born 1970), former professional basketball player
* Takashi Nagasaki (born 1958), Japanese author
* Barack Obama (born 1961), 44th President of the United States
* Roy Orbison (1936–1988), American singer-songwriter
* Glenn Ordway (born 1951), Boston-area sports radio host
* Otis Redding (1941–1967), American soul singer-songwriter and record producer
* Oscar Robertson (born 1938), former professional basketball player
* Oscar Santana, American radio personality
* Oprah Winfrey (born 1954), American television host, producer and philanthropist
* Oscar McInerney (born 1994), Australian rules footballer

## Structures and venues

* Big O (Ferris wheel), the world's largest centerless Ferris wheel, in Japan
* Big "O", a structure on Skinner Butte in Eugene, Oregon, United States, listed on the National Register of Historic Places
* Olympic Stadium (Montreal), Quebec, Canada; the main venue of the 1976 Summer Olympics
* Ontario Motor Speedway, California, USA; former superspeedway racecar track

## Other uses

* Omega (Ω), a Greek letter, whose name translates literally as "great O"
* Big O Tires, a tire retailer in the United States and Canada
* The Big O (album), by Roy Orbison
* Big Orange Chorus, a barbershop men's chorus in Jacksonville, Florida
