echo In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the lis ...

is a reflection of sound. Echo may also refer to:

Arts, entertainment, and media

Fictional entities

* Echo (DC Comics), various different characters * Echo (''Dollhouse''), the protagonist of the TV series ''Dollhouse'' * Echo (Marvel Comics), a superheroine in the Marvel Comics ** Maya Lopez (Marvel Cinematic Universe), the Marvel Cinematic Universe counterpart * Echo, a race of aliens from the TV series '' Invasion: Earth'' * Echo DiSavoy, a character in the soap opera ''One Life to Live'' * Echo Nightray, a character in '' Pandora Hearts'', a manga series * Echo, an ARC clone trooper from the ''Star Wars: The Clone Wars'' TV series and ''Star Wars: The Bad Batch'' TV series * Echo (''Overwatch''), from 2016 game ''Overwatch''

Films

* ''The Echo'' (1915 film), an American silent short romantic drama directed by Tom Ricketts * ''Echo'' (1997 film), a TV film * ''Echo'' (2001 film), an Iranian drama by Hossein Shahabi * ''Echo'' (2003 film), a short film by Tom Oesch *'' Sigaw'', a 2004 Filipino horror film, released internationally as ''The Echo'' ** ''The Echo'' (2008 film), a horror film based on the Filipino film * ''Echo'' (2007 film), a Danish film * ''Echo'' (2019 film), an Icelandic film * ''Echo'' (2023 film), an Indian film

Television

* ''Echo'' (miniseries), a 2024 Disney+ series based on the Marvel Comics character * "Echo" (''Dollhouse'' episode), an unaired pilot episode * "Echo" (''The Americans''), a 2014 episode *

Echo TV Echo TV was a Christian democracy, Christian-conservative Hungary, Hungarian television channel owned and operated by Echo Hungária TV Zrt, and founded in 2005 to cover business news.

, a conservative Hungarian TV channel * "Echo", an episode of the TV series ''

Pocoyo ''Pocoyo'' ( in Spanish and stylised as ''POCOYO'') is an animated interactive preschool comedy television series created by David Cantolla, Luis Gallego, and Guillermo García Carsí, that premiered on 7 January 2005 on La 2. The series was ...

Radio

* Echo (radio station), a community radio station in Farnborough, Hampshire * Echo of Moscow, a Russian radio station

Literature

* ''Echo'' (comic book), a comic book title by Terry Moore, launched in 2008 * ''Echo'' (Block novel), a 2000 fantasy novel by Francesca Lia Block * ''Echo'' (Muñoz Ryan novel), a 2015 novel by Pam Muñoz Ryan * "Echo", a poem by

Christina Rossetti Christina Georgina Rossetti (5 December 1830 – 29 December 1894) was an English writer of romanticism, romantic, devotional and children's poems, including "Goblin Market" and "Remember". She also wrote the words of two Christmas carols well k ...

* ''The Echo'' (novel), a 1997 crime novel by Minette Walters * ''The Echo'', a novel by Giles A. Lutz * "The Echo" (short story), a 1946 short story by Paul Bowles

Newspapers and magazines

* ''Echo'' (newspaper), a list of newspapers called ''Echo'' or ''The Echo'' * ''The Echo'' (Cork newspaper), founded in 1892 in Cork, Ireland * ''The Echo'' (Dublin newspaper), based in Dublin, Ireland * ''The Echo'' (Essex), a daily newspaper in England * ''The Echo'' (London) (1868–1905), an evening newspaper in England

Online media

* Echo (blog comment hosting service), a blog comment hosting service * EchoNYC, an online community * Early Cinema History Online, silent films database

Music

Classical compositions

* ''Echo'', by Iván Madarász * ''Echo'', by Lord Henry Somerset, 1900 * ''The Echo'', a 1925 opera by Frank Patterson, featuring soprano

Marie Rappold Marie Rappold, née Winterrath (17 August 1872 – 12 May 1957) was a German-born American operatic dramatic soprano. She sang with the Metropolitan Opera from 1905 to 1920. Early life She was born in Barmen, Germany on 17 August 1872. She a ...

* ''Echo'' (ballet), a 1989 ballet by Peter Martins

Albums

* ''Echo'' (Dave Burrell album) or the title track, 1969 * ''Echo'' (Leona Lewis album), 2009 * ''Echo'' (Nothing's Carved in Stone album), 2011 * ''Echo'' (Of Mice & Men album) or the title song, 2021 * ''Echo'' (Tom Petty and the Heartbreakers album) or the title song, 1999 * '' Echo Echo'', by Carbon Leaf, 2001 * ''Echo'' (EP), a 2025 EP by Jin

Songs

* "Echo" (Elevation Worship song), 2018 * "Echo" (Girls Can't Catch song), 2010 * "Echo" (Gorilla Zoe song), 2009 * "Echo" (Hardwell song) 2015 * "Echo" (Iru song), 2023 * "Echo" (R. Kelly song), 2009 * "Echo" (Trapt song), 2004 * "Echo" (You and I), by Anggun, 2012 * "Echo", by Andrew Bayer from '' If It Were You, We'd Never Leave'', 2013 * "Echo", by Bad Meets Evil from '' Hell: The Sequel'', 2011 * "Echo", by Christina Grimmie from '' All Is Vanity'', 2017 * "Echo", by Ciara from '' Fantasy Ride'', 2009 * "Echo", by Clairo from '' Charm'', 2024 * "Echo", by Cyndi Lauper from '' Bring Ya to the Brink'', 2008 * "Echo", by Eskimo Joe from '' Ghosts of the Past'', 2011 * "Echo", by Foxes from '' Glorious'', 2014 * "Echo", by Hot Chip from '' A Bath Full of Ecstasy'', 2019 * "Echo", by Joe Satriani from '' Surfing with the Alien'', 1987 * "Echo", by Little Glee Monster, 2019 * "Echo", by Maroon 5 from '' Jordi'', 2021 * "Echo", by the Mekons from '' The Mekons Rock 'n Roll'', 1989 * "Echo", by Swizz Beatz from ''

Poison A poison is any chemical substance that is harmful or lethal to living organisms. The term is used in a wide range of scientific fields and industries, where it is often specifically defined. It may also be applied colloquially or figurati ...

'', 2018

Other uses in music

* Echo (producer) (born 1982), Puerto Rican reggaeton producer * Echo Music Prize, a German music award 1992–2018 * The Echo Label, a defunct British record label *

Way Out West (duo) Way Out West are an English electronic music duo comprising Jody Wisternoff and Nick Warren. Originating in Bristol, England, they rose to fame in the 1990s with their UK-charting singles " The Gift" and "Ajare", and their debut studio album ' ...

, also known as Echo, an English electronic music group

Video games

* '' Echo: Secrets of the Lost Cavern'', a 2005 video game * ''Echo'' (2017 video game), a stealth and action-adventure video game

Brands and enterprises

Amazon Echo Amazon Echo, often shortened to Echo, is a brand of smart speakers developed by Amazon (company), Amazon. Echo devices connect to the voice-controlled Virtual assistant, intelligent personal assistant service. ''Amazon Alexa, Alexa'', which resp ...

, a line of smart speakers by Amazon.com *

Echo Arena Liverpool Liverpool Arena, known for sponsorship reasons as the M&S Bank Arena and previously the Echo Arena, is a multi-purpose indoor arena in the city centre of Liverpool, England. The venue hosts live music, comedy performances and sporting events, ...

, a music venue * ECHO Lake Aquarium and Science Center, in Burlington, Vermont * Echo smartpen, a ballpoint pen, computer and audio recorder manufactured by Livescribe * Echo tools, a series of power tools manufactured by the Yamabiko Corporation * Kyocera Echo, a dual screen smart phone * The Echo (venue), an American music venue and nightclub, Los Angeles, California *

Toyota Yaris The is a supermini/subcompact car sold by Toyota since 1999, replacing the Starlet and Tercel. Up to 2019, Toyota had used the Yaris nameplate on export versions of various Japanese-market models, with some markets receiving the same vehicl ...

, previously known as the Toyota Echo, a sub-compact car

Computing

echo (command) echo is shell command that writes input text to standard output. It is available in many operating system and shells. It is often used in a shell script to log status, provide feedback to the user and for debugging. For an interactive sessi ...

, a Unix, DOS and Microsoft Windows command to display a line of text * Echo (computing), a feature of telecommunications protocols * Echo (framework), a web framework for Java programming * Echo, a command in

programming language A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually def ...

s to output one or more strings * Echo, a discussion forum on

FidoNet __ / \ /, oo \ (_, /_) _`@/_ \ _ , , \ \\ , (*) , \ )) ______ , __U__, / \// / FI ...

* ECHO IV, "Electronic Computer for Home Operation", an experimental home computer from 1966 * Echo Protocol, an Internet protocol largely superseded by ICMP * Echo (communications protocol), a group communications protocol for authenticated and encrypted information

People

Aimee Echo Aimee Echo ( né Rodrigues; born March 27, 1970) is an American singer. She rose to prominence as the singer of Human Waste Project, who she fronted between 1994 until the band's dissolution in 1998. Afterwards, she became the frontwoman of th ...

, American vocalist with TheStart and Normandie * Echo Eggebrecht (born 1977), American painter * Echo Heron, American author and activist * Echo Johnson, model and actress * Echo Kellum (born 1982), American actor and comedian

Places

* Echo Bay (disambiguation), several places in the United States and Canada * Echo Canyon (disambiguation), several places with this name * Echo Lake (disambiguation), several places in the United States and Canada

United States

* Echo, Alabama, an unincorporated community * Echo, Inyo County, California, a former settlement * Echo Mountain, in the San Gabriel Mountains, California * Echo Peak, in the Sierra Nevada range, California * Echo Peaks * Echo, Kentucky, an unincorporated community * Echo, Louisiana, an unincorporated community * Echo, Minnesota, a city * Echo, Oregon, a city * Echo, Pennsylvania, an unincorporated community * Echo, Utah, a census-designated place * Echo, Texas * Echo, West Virginia, an unincorporated community * Echo Peak (Wyoming), a mountain peak in the Gallatin Range in Yellowstone National Park *

Echo Summit Echo Summit is a mountain pass over the Sierra Nevada in the western United States, located in eastern El Dorado County, California. At above sea level, it is the highest point on U.S. Route 50 in California, which traverses it at postmile 6 ...

, a mountain pass in California * Echo Tower, a natural pillar in Utah * Echo Township, Michigan * Echo Township, Yellow Medicine County, Minnesota * Lake Echo (Polk County, Florida)

Elsewhere

* Echo, Aragón, Spain, a village * Echo, Ontario, a neighbourhood in West Lincoln, Canada * 60 Echo, an asteroid * Echo Bank, a submarine mountain in the Atlantic Ocean

Science

* ''Echo'' (damselfly), a genus of damselfly *

Echocardiography Echocardiography, also known as cardiac ultrasound, is the use of ultrasound to examine the heart. It is a type of medical imaging, using standard ultrasound or Doppler ultrasound. The visual image formed using this technique is called an ec ...

, an imaging technique used to assess heart function in medicine * Echovirus, short for "enteric cytopathic human orphan" virus *

EChO In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the lis ...

, a proposed European Space Agency mission to study exoplanet atmospheres * ECHO Clearinghouse, NASA's registry of Earth Science data and services, an early SOA example *

Project Echo Project Echo was the first passive communications satellite experiment. Each of the two American spacecraft, launched in 1960 and 1964, were metalized balloon satellites acting as passive reflectors of microwave signals. Communication sign ...

, the first passive communications satellite experiment * Signal reflection, in electronics

Transport

Aircraft

* ''Echo'', the name of an

Armstrong Whitworth Ensign The Armstrong Whitworth A.W.27 Ensign was a British four-engine monoplane airliner and the largest airliner built in Britain during the Interwar period.Tapper, 1988, p.237 The British airline Imperial Airways requested tenders for a large mono ...

aircraft * Cosmos Echo, an ultralight trike aircraft * Tecnam P92 Echo, an ultralight aircraft

Marine vessels

* Echo 12, a Canadian sailboat design. * was a ship launched at Hull in 1792 that made one voyage for the British East India Company and that was captured by a French privateer in 1799 * ''Echo'' (steam tug), a steam tug on Puget Sound * ''Echo'' (sternwheeler 1865), a sternwheel steamboat that operated on the Willamette River, in Oregon, U.S. * ''Echo'' (sternwheeler 1901), a sternwheel steamboat that operated on the Coquille River, in Oregon, U.S. * Echo-class submarine, a Soviet-era submarine class * ''Echo''-class survey ship (1957), a Royal Navy class * ''Echo''-class survey ship (2002), a Royal Navy class * , various Royal Navy ships * USS ''Echo'' (IX-95), a 1942 US Army World War II supply ship

Motor vehicles

* Toyota Echo, rebadged variant of the

, produced between 1999 through 2005

Other uses

* ECHO (European Commission) (European Community Humanitarian aid Office), a department of the European Union *

Echo (mythology) In Greek mythology, Echo (; , ''Ēkhō'', "echo", from ἦχος (''ēchos''), "sound") was an Oread who resided on Cithaeron, Mount Cithaeron. Zeus loved consorting with beautiful nymphs and often visited them on Earth. Eventually, Zeus's wife, ...

, a nymph in Greek mythology * Echo (elephant), a matriarch elephant in the Amboseli National Park * Echo, the letter E in the

ICAO spelling alphabet The International Radiotelephony Spelling Alphabet or simply the Radiotelephony Spelling Alphabet, commonly known as the NATO phonetic alphabet, is the most widely used set of clear-code words for communicating the letters of the Latin/Roman ...

* ECHO, acronym for Educational Concerns for Hunger Organization, a non-profit agro-ecological organization * ECHO, acronym for Extended Care Health Option, a health coverage program * ECHO, acronym for East Coast Homophile Organizations * Echo, triple parentheses around a name as a symbol of antisemitism * Echo effect, electronic echo