Vector

Vector most often refers to:
 * Euclidean vector, a quantity with a magnitude and a direction
 * Disease vector, an agent that carries and transmits an infectious pathogen into another living organism

Vector may also refer to:

Mathematics and physics

 * Vector (mathematics and physics)
 * Row and column vectors, single row or column matrices
 * Vector space
 * Vector field, a vector for each point

Molecular biology

 * Vector (molecular biology), a DNA molecule used as a vehicle to artificially carry foreign genetic material into another cell
 * Cloning vector, a small piece of DNA into which a foreign DNA fragment can be inserted for cloning purposes
 * Shuttle vector, a plasmid constructed so that it can propagate in two different host species
 * Viral vector, a tool commonly used by molecular biologists to deliver genetic materials into cells

Computer science

 * Vector, a one-dimensional array data structure
 * Distance-vector routing protocol, a class of routing protocols
 * Dope vector, a data structure used to store information about an array
 * Feature vector, an n-dimensional vector of numerical features that represent some object
 * Interrupt vector, the location in memory of an interrupt handling routine
 * Initialization vector, a fixed-size input to a cryptographic primitive
 * Vector clock, an algorithm
 * Vector space model, an algebraic model for representing text documents
 * Vector (C++), a type in the C++ Standard Template Library
 * Euclidean vector, a geometric object with a direction and magnitude
 * Vector graphics, images defined by geometric primitives as opposed to bitmaps
 * Vector monitor, a display device used for early computers
 * Vector game, any video game that uses a vector graphics display
 * Vector (malware), approach used, or vulnerability exploited, in attacking a computer system
 * Vector (robot), a 2018 robot by Anki

Aircraft

 * Aerodyne Systems Vector, an ultralight aircraft
 * Hall Vector 1, a glider
 * A brand of reconnaissance drone produced by Quantum-Systems

Nautical vessels

 * MT Vector, a Philippine tanker ship
 * CCGS Vector, a 1967 hydrographic survey vessel in the Canadian Coast Guard

Automotive vehicles

 * Pinzgauer High-Mobility All-Terrain Vehicle (ATV) (Vector), a military patrol vehicle
 * VECTOR, a Dutch light utility vehicle
 * Vector, a variant of the Saab 9-3 automobile
 * Vector Motors sports cars
 * Vector M12
 * Vector W2
 * Vector W8
 * Vector WX-3
 * Vector SRV8

Other transportation

 * Thrust vectoring, directing aircraft jet thrust
 * Radar vector, headings assigned by air traffic control for navigation

Characters and fictional elements

 * Vector (Battle Angel Alita)
 * Vector (comics), Marvel Comics
 * Vector (G.I. Joe), vehicle
 * Vector the Crocodile, in the Sonic the Hedgehog series
 * Septima Vector, a Hogwarts professor in the Harry Potter universe
 * Vector, a Barian Emperor from Yu-Gi-Oh! Zexal
 * Vector class in Wipeout games
 * Victor "Vector" Perkins in Despicable Me (film), 2010
 * Vector, in the game Resident Evil: Operation Raccoon City
 * Vector, a weapon in the series Elfen Lied
 * Vector, a location in the video game Final Fantasy VI
 * Vector Industries, an organization in the Xenosaga video game series

Games

 * Vector (video game), 2012 video game
 * Vectorman, 1995, for Sega

Music

 * Vector (band), 1980s
 * Vector (album), a 2018 album by Haken
 * Vector (rapper) (b. 1983), Nigerian
 * Martin Wheeler, aka Vector Lovers

Literature

 * Vector (magazine), the critical journal of the British Science Fiction Association
 * Vectors (journal), a defunct online journal covering digital humanities
 * The Vector (newspaper), a student-run newspaper of the New Jersey Institute of Technology
 * Vector (novel), a 1999 novel by Robin Cook
 * Vector Prime, a 1999 Star Wars novel written by R. A. Salvatore
 * Vector 13, a comic strip in the 2000 AD anthology

Business

 * Vector Informatik, a software tool and components provider for development of embedded electronics
 * Vector Engineering, multinational engineering, procurement, construction management, and operations service provider
 * Vector Graphic, an early manufacturer of 8-bit microcomputers
 * Vector Group, a publicly traded holding company, focusing on tobacco and real estate
 * Vector Limited, a New Zealand gas and electricity supplier
 * Vector Marketing, a multi-level knife marketing company
 * Vector Motors, an automobile manufacturer
 * Vector Launch, an American space technology company, 2016–2019
 * State Research Center of Virology and Biotechnology VECTOR, a biological research center in Russia

Other uses

 * Interval vector in musical set theory
 * KRISS Vector, a .45 ACP submachine gun
 * Light verb, or vector verb, in grammar
 * Parker Vector, pens
 * Vector Arena, Auckland, New Zealand
 * Vector Map, a collection of Earth GIS data
 * Vector 2022, a Wikipedia skin