Echo most commonly refers to Echo , a reflection (and/or repetition) of sound. It may also refer to: Computing · Echo , a Unix, DOS and Microsoft Windows command to display a line of text · Echo , a web framework for Java programming · ECHO protocol, an internet protocol · A discussion forum on FidoNet Fiction and mythology · Echo , a nymph · Echo , a character in the Marvel universe · Echo , a 2003 short film directed by Tom Oesch · Secrets of the Lost Cavern, a video game · A race of aliens from the UK TV series Invasion Earth Music · "Echo" · Echo , a reggaeton producer · Echo · Echo · ECHO · The Echo · Echo Records, a record label · Echo & the Bunnymen, a band