Division or divider may refer to:

Mathematics

*Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division

Military

*Division (military), a formation typically consisting of 10,000 to 25,000 troops **Divizion, a subunit in some militaries *Division (naval), a collection of warships

Science

*Cell division, the process in which biological cells multiply *Continental divide, the geographical term for separation between watersheds *Division (biology), used differently in botany and zoology *Division (botany), a taxonomic rank for plants or fungi, equivalent to phylum in zoology *Division (horticulture), a method of vegetative plant propagation, or the plants created by using this method * Division, a medical/surgical operation involving cutting and separation, see ICD-10 Procedure Coding System

Technology

*Beam compass, a compass with a beam and sliding sockets for drawing and dividing circles larger than those made by a regular pair of compasses *Divider caliper or compass, a Calipers, caliper *Frequency divider, a circuit that divides the frequency of a clock signal

Society

*Administrative division, territory into which a country is divided *Census division, an official term in Canada and the United States *Diairesis, Plato's method of definition by division *Division (business), of a business entity is a distinct part of that business but the primary business is legally responsible for all of the obligations and debts of the division *Division (political geography), a name for a subsidiary state or prefecture of a country *Division (sport), a group of teams in organised sport who compete for a divisional title *In parliamentary procedure: **Division of the assembly, a type of formally recorded vote by assembly members **Division of a question, to split a question into two or more questions *Partition (politics), the process of changing national borders or separating political entities *Police division, a large territorial unit of the British police

Places

*Division station (CTA North Side Main Line), a station on the Chicago Transit Authority's North Side Main Line *Division station (CTA Blue Line), a station on the Chicago Transit Authority's 'L' system, serving the Blue Line *Division Mountain, on the Continental Divide along the Alberta - British Columbia border of Canada *Division Range, Humboldt County, Nevada

Music

*Division (10 Years album), ''Division'' (10 Years album), 2008 *Division (The Gazette album), ''Division'' (The Gazette album), 2012 *Divisions (album), ''Divisions'' (album), by Starset, 2019 *Division (music), a type of ornamentation or variation found in early music *Divider, as in Glossary of Schenkerian analysis#D, Schenkerian music analysis, a consonant subdivision of a consonant interval *"Division", a song by Aly & AJ from ''Insomniatic'', 2007 *"Divider", a song by Scott Weiland from the album ''12 Bar Blues (album)'', 1998

Other uses

*Divider, a central reservation in Bangladesh *Division of the field, a concept in heraldry *Division (logical fallacy), when one reasons logically that something true of a thing must also be true of all or some of its parts *Tom Clancy's The Division, a multiplayer videogame by Ubisoft and Red Storm Entertainment *''The Division'' (TV series), a police procedural