Spellcaster is a heavy/speed metal band from Portland, Oregon, formed in 2014, reviving the NWOBHM-influenced speed metal sound of the early 1980s with strong melodies, galloping riffs, and a classic aesthetic.

Spellgrinder is a heavy metal band from Twentynine Palms, California, formed in 2023, playing traditional heavy metal from the high desert of the Mojave with a sound rooted in classic metal song craft.

Spherical Obscenity is a Buffalo, New York band formed in 2017 that combines melodic death metal's harmonic sensibility with traditional heavy metal structure, balancing hook-driven riffing against heavier rhythmic attack.

Spike is a Cincinnati heavy metal band that has been active since 2016, playing straightforward, riff-driven metal with roots in classic American and NWOBHM-influenced traditions.

Spillage is a Chicago doom and heavy metal band formed in 2015, combining the grinding tempos and crushing weight of doom metal with the riff-centered swagger of traditional heavy metal.

Spinal Tap is the Los Angeles fictional heavy metal band created for Rob Reiner's 1984 mockumentary This Is Spinal Tap, whose satirical portrayal of rock excess became one of the most influential comedies in music history and a touchstone for heavy metal culture worldwide.

Epic traditional doom/heavy metal. Nate Garrett delivers riffs and melodies with crushing emotional weight.

Spiritus Mundi is a heavy and thrash metal band from Sylvania, Ohio, formed in 2011, taking its name from W.B. Yeats and channeling classic metal aggression with a riff-centric approach rooted in the traditions of both genres.

Splatter Pattern is a heavy metal band from Clifton, New Jersey, formed in 2020, drawing on traditional metal influences with the grit characteristic of the New York/New Jersey metropolitan underground.