"Hush" is the tenth episode in the fourth season of the supernatural drama television series Buffy the Vampire Slayer (1997–2003). It was written and directed by series creator Joss Whedon and originally aired in the United States on December 14, 1999, on The WB. After reading critical response to the series in which the dialogue was praised as the most successful aspect of the show, Whedon set out to write an episode almost completely devoid of speech. Only about 17 minutes of dialogue is presented in the entire 44 minutes of "Hush".

The fourth season of the television series Buffy the Vampire Slayer premiered on October 5, 1999, on The WB and concluded its 22-episode season on May 23, 2000. It maintained its previous timeslot, airing Tuesdays at 8:00 pm ET. Beginning with this season, the character of Angel was given his own series, which aired on The WB following Buffy. Various Buffy characters made appearances in Angel, including Buffy herself; Cordelia Chase, formerly a regular in Buffy, and Wesley Wyndam-Pryce, who appeared in Buffy season three.