Beam may refer to:

Streams of particles or energy

Light beam A light beam or beam of light is a directional projection of light energy radiating from a light source. Sunlight forms a light beam (a sunbeam) when filtered through media such as clouds, foliage, or windows. To artificially produce a li ...

, or beam of light, a directional projection of light energy **

Laser beam A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word ''laser'' originated as an acronym for light amplification by stimulated emission of rad ...

* Radio beam *

Particle beam A particle beam is a stream of charged particle, charged or neutral particles other than photons. In Particle accelerator, particle accelerators, these particles can move with a velocity close to the speed of light. There is a difference between ...

, a stream of charged or neutral particles ** Charged particle beam, a spatially localized group of electrically charged particles ***

Cathode ray Cathode rays are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from the c ...

, or electron beam or e-beam, streams of electrons observed in discharge tubes ***

X-ray An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ran ...

beam, a penetrating form of high-energy electromagnetic radiation ** Molecular beam, a beam of particles moving at approximately equal velocities

People

* Beam (rapper) (born 1995), American hip hop artist * Anong Beam, Canadian Ojibwe artist and curator * Carl Beam (1943–2005), Indigenous Canadian artist

Arts, entertainment and media

* Beam (music), a connection line in musical notation * ''Beam'' (single album), by Hoshi X Woozi, 2025 * ''The Beam'' (fairy tale), the Brothers Grimm tale 149 * BEAM.TV, an online digital delivery and content management platform * BEAM Channel 31, a Philippines television network * Beam (website), later Mixer, a former video game live streaming platform * BeamNG.drive, an open-world vehicle simulation video game * Beam, to transport matter using the Transporter in the ''Star Trek'' fictional universe

Businesses

* Beam Software, later Krome Studios Melbourne, an Australian video game development studio * Broadcast Enterprises and Affiliated Media, a telecommunications company in the Philippines * Beam Energy, an energy provision arrangement of British company Robin Hood Energy

Science and technology

* BEAM (Erlang virtual machine), a virtual machine at the core of the Erlang Open Telecom Platform * BEAM robotics (biology, electronics, aesthetics and mechanics), a style of robotics * Beam search, a heuristic search algorithm * Bigelow Expandable Activity Module, an experimental expandable space station module * Apache Beam, a data processing programming model *

Beam (structure) A beam is a structural element that primarily resists loads applied laterally across the beam's axis (an element designed to carry a load pushing parallel to its axis would be a strut or column). Its mode of deflection is primarily by bending ...

, a structural element that resists lateral loads

Other uses

* Beam (horse), a racehorse *

Beam (nautical) The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterlin ...