Zzzz

ZZZZ or zzzz may refer to:


 * Zzzz, a cross-linguistic onomatopoeia for snoring
 * A series of Zs in a speech balloon, a comic book convention for snoring
 * ZZZZ, the four-letter placeholder ICAO airport code
 * Zzzz, the ISO 15924 code for uncoded script
 * ZZZZ, a mid-2000s rock band including former members of the band Sweep the Leg Johnny
 * "Zzzz", a silent track on the 2014 album Sleepify by Vulfpeck
 * "ZzZz", a song on the 2019 studio album Reality in Black by Mamamoo
 * "ZzZz", a song on the 2021 EP Hide & Seek by Purple Kiss

Five or more Zs

 * "ZZZZZ", a 1964 episode of The Outer Limits
 * Zzzzzz, a joke line based in Los Angeles