Slayer (scilicet necator) est grex musicus Americanus qui modo metallo gravi et metallo verberanti cantat. Est unus inter illos quattuor greges maximos generis thrash metal, quorum ceteri sunt Metallica, Anthrax, Megadeth.

Slayer congregatus est anno 1981 in urbe Huntington Park prope Angelopolim.

• Thomas Araya - cantator, bassista (id est, qui instrumento cithara gravi canit.)
• Galfridus Hanneman - cantator, gitarrista (id est, qui instrumento cithara electrica canit.; 1982-2011)
• Kerry King - cantator, gitarrista
• Gary Holt - gitarrista (2011-praesens)
• David Lombardo - tympanator (1982–1986, 1987–1992, 2001–2013)
• Paulus Bostaph - tympanator (1992–1996, 1997–2001, 2013–praesens)

• 1983: Show No Mercy, sc. Nullam da veniam
• 1985: Hell Awaits, sc. Hades exspectat
• 1986: Reign in Blood sc. Rege in sanguine
• 1988: South of Heaven, sc. Meridies ab partibus caelestis
• 1990: Seasons in the Abyss, sc. Tempora in voragine
• 1994: Divine Intervention, sc. Interventio divina
• 1996: Undisputed Attitude, sc. Habitus mentis indisputatus
• 1998: Diabolus in Musica
• 2001: God Hates Us All, sc. Deus nos omnes odit
• 2006: Christ Illusion, sc. Illusio Christi
• 2009: World Painted Blood sc. Sanguini Pictus Mundi
• 2015: Repentless sc.