Festercult is a death metal band from Temerin in the Vojvodina province of Serbia, formed in 2024. They deliver old-school death metal from the multiethnic northern Serbian plains.

Festerday is a death metal band from Pietarsaari, Finland, formed in 2015. The band channels old-school death metal from the bilingual coastal town in Ostrobothnia.

Festerguts is a death metal band from Kaluga, Russia, formed in 2013. They deliver old-school death metal from the historic city on the Oka River southwest of Moscow.

Festering is a death metal band from Santo Antonio dos Cavaleiros near Lisbon, formed in 2015. They channel old-school death metal ferocity from the Lisbon metropolitan area, where the Portuguese extreme metal scene is concentrated.

Festering Flesh was a death metal band from Haid bei Ansfelden, Upper Austria, active from 1998 to 2006, having previously operated as Torture (1996–1998) and briefly as Sophisticated (1998). The band dealt in gore and pornographic lyrical themes typical of the late-1990s death metal underground and remained unsigned throughout their existence.

Festering Gash is a death metal/grindcore band from England, formed in 2018. The band delivers visceral, extreme grindcore.

Festering Process is a death metal/grindcore band from Bourgoin-Jallieu, France, formed in 2019. The band delivers grinding death metal from the Isère department near Lyon.

Festering Remains is a brutal death metal band from Umea in northern Sweden, active since 2012. They deliver crushing brutality from the Vasterbotten capital, a city equally known for its hardcore/punk scene and its arctic winters.

Festival of Mutilation is a death metal band from Sarajevo, Bosnia and Herzegovina, founded in 2006 by Marko Gačnik, Jasenko Džipa, and Saša Džino. Primarily inspired by Nile, the band fuses brutal and technical death metal with occasional oriental melodic influences, documented on their full-lengths "Gods of Infernal Desolation" (2009) and "Indiscipline" (2014).