High Speed or high-speed may refer to:

• Eight-Foot High Speed Tunnel, also known as Eight-Foot Transonic Tunnel; a wind tunnel at NASA's Langley Research Center in Hampton, Virginia
• High Speed Civil Transport (HSCT) or High-Speed Research (HSR) Program, a NASA program (1990–1999), focused on future passenger jet technology
• High-speed flight, a term for subsonic aerodynamics and theory
• High Speed Flight RAF, sometimes known as 'The Flight' , a small flight of the Royal Air Force (RAF) formed for the purpose of competing in the Schneider Trophy contest for racing seaplanes during the 1920s
• High speed turn off (HSTO) or High speed taxiway (HST), special types of taxiways which allow aircraft to exit a runway at higher speeds
• High speed wind tunnel (HSWT), also known as high subsonic or transonic, a type of wind tunnel

• High speed input (HSI) and High speed output (HSO), technology used in various microcontrollers such as the Intel MCS-96
• High Speed Interconnect (HSI or HSI-Bridge), a chip from Nvidia corporation involving AGP and PCI Express
• High-Speed Serial Interface (HSSI), a differential ECL serial interface standard developed by Cisco Systems and T3plus Networking
• VHSIC (Very High Speed Integrated Circuits), a 1980s U.S. government program to develop faster circuits

• High-speed Internet or broadband

• 125 High Speed Mode, Broadcom's proprietary frame-bursting and compression technology to improve 802.11g wireless LAN performance
• High speed Bluetooth, another name for Bluetooth 3.0
• High-Speed Circuit-Switched Data (HSCSD), an enhancement to GSM mobile communications
• High-speed data access, the IEC 61970-404 Component Interface Specification (CIS)
• High Speed Link, a way to carry a number of voice channels over an SDH-like link.
• High-speed multimedia radio (HSMM), colloquially referred to as the hinternet; the implementation of wireless data networks over amateur radio frequencies using commercial off-the-shelf (COTS) hardware
• High Speed OFDM Packet Access, a mobile telecommunications technology
• High Speed Packet Access (HSPA), a collection of two mobile telephony protocols
  • High-Speed Downlink Packet Access (HSDPA), a 3G mobile telephony communications protocol
    • High-Speed Downlink Shared Channel (HS-DSCH), used in HSDPA (UMTS) to send packets on the downlink to the UEs; called High-Speed to distinguish it from the more general definition of the downlink shared channel (DSCH) in UMTS
  • High-Speed Uplink Packet Access (HSUPA), a 3G mobile telephony communications protocol in
• High Speed Telegraphy (HST), competitions which challenge individuals to correctly receive and copy Morse code transmissions sent at very high speeds
• High-speed transceiver logic (HSTL), a technology-independent standard for signaling between integrated circuits
• High Speed Voice and Data Link (HVDL), a high-speed voice and data provisioning method that allows telcos and ISPs to provide up to three voice channels and data on a copper pair
• Single-Pair High-speed Digital Subscriber Line (SPHSDSL), a type of DSL technology
• Very High Speed Digital Subscriber Line (VHSDSL) and Very High Speed Digital Subscriber Line 2 (VHSDSL2), types of DSL technology

• High-speed door, a type of door mainly used in the industrial sector
• High Speed Cutting, technology for high-speed metal work
• High Speed Drilling (HSD), drilling at two times or more compared to conventional drilling speeds
• High Speed Machining (HSM), techniques used for high speed milling and drilling
• High speed steel (HSS, sometimes HS), a material usually used in the manufacture of machine tool bits and other cutters

• AGM-88 HARM, AGM-88 High Speed Anti-Radiation Missile (HARM), a military missile
• High speed transport, converted destroyers and destroyer escorts used to support amphibious operations in World War II and afterward
• M4 Tractor or M4 High-Speed Tractor, an artillery tractor used by the US Army from 1943

• High speed camera, a device used for recording slow-motion playback films
• High speed digital microscope, a product from Keyence
• High speed photography, the science of taking pictures of very fast phenomena
• High Speed Photometer (HSP), a scientific instrument installed on the Hubble Space Telescope
• High-Speed-Synchronisation, a designation for Flash synchronization

• High-speed rail, a type of rapid passenger rail transport
• High-speed rail by country, a listing of articles for high-speed rail transit worldwide
• List of high-speed trains, a listing of high-speed trains

• High Speed Alliance, the former name of NS Hispeed, a rail operator in The Netherlands
• High Speed Electric Locomotive, an electric locomotive operated by Amtrak
• High Speed Freight Vehicle (HSFV), a generic term for a number of prototype 4-wheeled rail vehicles which were fitted with various experimental suspensions, developed by the British Rail Research Division
• High Speed Surface Transport (HSST), a maglev regional transport system
• High Speed Train Europe (HSTE or HTE), a high-speed rail project between Société Nationale des Chemins de fer Français and Deutsche Bahn, stopped in 2004
• High Speed 1 (HS1), officially known as the Channel Tunnel Rail Link (CTRL), is a high-speed railway line in the United Kingdom
• High Speed Line 1, HSL 2, HSL 3, HSL 4, a series of high-speed rail lines in Belgium

• High-speed amphibian (HSA) vehicles, manufactured by Gibbs Technologies; examples are the Gibbs Aquada, Humdinga and Quadski
• High-speed craft (HSC), a high speed water vessel for civilian use, also called a fastcraft or fast ferry
  • Category:High-speed craft
• High-speed Sea Service, or commonly Stena HSS, a class of high-speed craft developed and operated by the Stena Shipping Line for European international ferry traffic

• High Speed (pinball), a 1986 pinball game designed by Steve Ritchie and released by Williams Electronics
• High Speed (video game), a pinball video game based on Steve Ritchie's 1986 pinball machine
• The Getaway: High Speed II, a 1992 pinball game by Steve Ritchie

• High Speed Digital Spirit Processing (album), the second album by PAX
• High Speed Digital Design: A Handbook of Black Magic (book), by Howard W. Johnson and Martin Graham (1993)
• High Speed Jackknife Fighter (HSJF), a fictional war fighter vehicle in Starcom: The U.S. Space Force
• High Speed Thrill Coaster (roller coaster), a small roller coaster built by the Overland Amusement Company, in operation 1955-2008

• High Speed Money, an alternative title in Germany for the film Rogue Trader (film)
• High Speed (1920 film), a Hollywood film
• High Speed (1932 film), a 1932 American film
• High Speed (film), a 2002 British-Italian film

• "High Speed," a song by 2Pac and Outlawz from Still I Rise (album) 1999
• "High Speed," a song by Coldplay from their 2000 album Parachutes
• The High Speed Scene, a power-pop band from California
• The High Speed Scene (EP), the self-titled second EP by Power pop band The High Speed Scene
• High Speed E.P. (album), the third and last release by PAX

• High Speed Metal & Plastics, Hong Kong based maker of diecast cars and fire engines

• InterCity 125, the brand name of British Rail's High Speed Train fleet
• TGV (train à grande vitesse), French for high-speed train