[3] The lineup included:[4] Fever 333 Kataklysm Beartooth Killswitch Engage Godsmack Ghost Galactic Empire Anonymus Quiet Riot Hatebreed Steel Panther Evanescence Harm's Way Devin Townsend All That Remains Cancer Bats Municipal Waste Watain Brand of Sacrifice Lorna Shore Nekrogoblikon Rivers of Nihil The Faceless Carnifex Cattle Decapitation Dying Fetus Knocked Loose Despised Icon Skillet In This Moment Slash Slayer1 Mountain Dust Beast in Black Atreyu Gamma Ray Clutch Anthrax Dopethrone Skálmöld Fu Manchu Gloryhammer Terror Counterparts Stick to Your Guns Junkowl Dirty Honey The Great Sabatini Metalachi 3Teeth Demolition Hammer Heavy Montreal returned in 2018 after a one-year hiatus.
The lineup included:[5] Pallbearer Sword Tech N9ne I Prevail Marilyn Manson Rob Zombie Born of Osiris Lee Aaron Baroness Alestorm Underoath Emperor Veil of Maya The Black Dahlia Murder Witchcraft Napalm Death Red Fang Between the Buried and Me Jungle Rot Entheos Soreption Allegaeon The Agony Scene Erra Jinjer Helix Demon Hunter Voivod Asking Alexandria Hollywood Undead Limp Bizkit1 Intervals Emmure Ultra Vomit Sleep Trivium Gojira Blind Witness Power Trip Warbringer Gloryhammer Eyehategod Perturbator Nonhuman Era Get the Shot Bad Omens Havok Khemmis Necrotic Mutation The 2016 edition of Heavy Montréal took place on 6–7 August 2016.
Devin Townsend Project Dying Fetus Mass Murder Messiah Ion Dissonance Masked Intruder Dig It Up The Agonist Battlecross Fozzy Coal Chamber Dokken Asking Alexandria Bullet for My Valentine Slipknot Motionless in White Warrant Marky Ramone's Blitzkrieg Within Temptation Lamb of God
Omnium Gatherum Insomnium Jasta Pig Destroyer Sanctuary Ihsahn Nuclear Assault Exes for Eyes Sandveiss Dead Tired Small Brown Bike Upon a Burning Body Wilson The lineup included:[10] Monster Truck Overkill Apocalyptica Dropkick Murphys Anthrax Metallica Babymetal Pennywise Three Days Grace Voivod The Offspring Eagle Tears Mass Hysteria Municipal Waste Whitechapel Protest the Hero The Vandals Madball Kublai Khan Biblical Unlocking the Truth Whores.
Emmure Cancer Bats Sword Voivod Slaves on Dope Red Fang Suicide Silence Machine Head In Flames Godsmack Disturbed Dead and Divine All Shall Perish Death Angel Unearth Trivium Billy Talent Mass Murder Messiah Straight Line Stitch Blackguard Kingdom of Sorrow GrimSkunk Necronomicon Dissension Cryptopsy Lazarus A.D. Girlschool As I Lay Dying Morbid Angel Opeth Kiss Endast Times of Grace Annihilator Children of Bodom Anthrax Motörhead Les Guenilles Anonymus Slaves on Dope1 Diamond Head DevilDriver The Catalyst Gorguts Skeletonwitch High on Fire Kataklysm Anvil Rob Halford Slayer Megadeth 36 Crazyfists Baptized in Blood Melissa Auf der Maur Fear Factory Testament Mastodon Alice Cooper Hail the Villain Despised Icon Airbourne Winds of Plague Five Finger Death Punch Lamb of God Rob Zombie Korn Beneath the Massacre Shadows Fall Chimaira Hatebreed Alexisonfire Avenged Sevenfold Deadly Apples Les Ékorchés Norma Jean Diamond Head 3 Inches of Blood In This Moment Atreyu Due to the high number of metal live shows performed in Montreal during the year (Metallica, AC/DC, Kiss, Dream Theater, Marilyn Manson, Motörhead and many more) it was announced that the festival would not take place in 2009 and return in 2010.