Zerø the Herø is a drone/doom metal and noise/ambient project from Sweden, active since 2001. Their extended, monolithic compositions explore the outer reaches of doom and drone, dissolving into ambient noise.

Zess is a doom metal band from Genoa, Italy, formed in 2003. As one of the longer-running doom acts in the Italian scene, they deliver slow, crushing heaviness drawn from the classic doom metal tradition.

Zintnieks is a psychedelic stoner/doom metal band from Riga, Latvia, formed in 2019. Their albums "No aizkurienes" (2021) and "Ilgas pēc vasaras rītiem" (2026) feature long-format, slow-grinding doom with soaring female vocals by Elizabete Frišfelde-Āgare, drawing comparisons to Tool, Boris, and Pelican.

Zivatar is an industrial gothic/doom metal band from Gyöngyös, Hungary, conceived as a solo project in 2012 with the full band assembled by 2017. Their extensive discography, from "The Sixth Chamber" (2015) through "Apocalypse Campaign," blends industrial harshness with gothic and doom atmospheres.

Zolfo is a five-piece doom/sludge metal band from Bari, Italy, formed in 2017. Their releases, including "Delusion of Negation" and "Descending into Inexorable Absence," deliver crushing doom and sludge with live performances at festivals like Frantic Fest.

Zoltar is a doom/stoner metal band from Uppland, Sweden, formed in 2003. Their long-running project blends heavy doom riffs with stoner rock grooves.

Zombie Eater is a sludge/stoner/doom metal trio from Helsinki, Finland, self-described as being on "a mission to toast together in the Kingdom of Sludge." Their three albums — "Slumberjack" (2018), "Greenskeeper" (2020), and "Faces" (2025) — were recorded live and mastered by renowned engineer James Plotkin.

Zombie Rodeo is a doom/stoner rock band from Helsinki, Finland, established in 2011 and known for their gritty fuzz rock with a groovy, straightforward sound. Their releases include "Dia De Los Muertos" and "The Eyes Are Set Upon You," and they are recognized for high-energy live shows.

Zonderhoof is a stoner/doom metal trio from Cardiff, Wales, formed in 2006. Their instrumental sound features crushing riffs with unexpected twists, drawing comparisons to Keelhaul, Capricorns, and Neurosis, with releases including their self-titled EP (2007) and "Hakken!" (2011).