List of fantasy class names. From 2013 post started by @Abandoned Arts and frequently necro'd.
https://www.enworld.org/threads/the-every-class-ever-list-can-you-add-to-it.337131/
Abbot
Abjurer
Acrobat
Adventurer
Aegis
Aeromancer
Aeronaut
Aethernaut
Agent
Alchemist
Algai'd'siswai
Alienist
Angakkuq
Angler
Animist
Anti-paladin
Antihero
Apothecary
Aquanaut
Arbalester
Arbiter
Arcane Archer
Arcane Knight
Arcanist
Archeologist
Archer
Archmage (maybe more of a prestige class)
Armiger
Armorer
Artificer
Assassin
Astrologer
Augurer
Avenger
Bandit
Barbarian
Bard
Battle Seer
Battlemage
Beastlord
Beastmaster
Beastrider
Beguiler
Berserker
Binder
Bishop
Blackguard
Blacksmith
Bladesinger
Blighter
Bloodmage
Bone-breaker
Bookbinder
Botanist
Bounty Hunter
Bravo
Brawler
Brewmeister
Brigand
Buccaneer
Bushi
Cannibal
Cardinal
Cartographer
Cavalier
Cavalryman
Centurian
Cestus
Champion
Channeler
Chanter
Charioteer
Charlatan
Charmer
Chasseur (sort of a medieval commando)
Chevalier
Chieftain
Chirurgeon
Chronomancer
Clairvoyant
Cleric
Combatant
Commander
Commando
Conjurer
Consecrator
Constabulary
Consular
Corsair
Courtesan
Courtier
Crimelord
Crossbowman
Crusader
Cryomancer
Cryptic
Curate
Cursebearer
Deabru (Demon Hunter)
Dealer
Deathknight
Deathmaster
Defender
Demagogue
Demolitionist
Demoniac
Demonlord
Demonologist
Demon-Slayer
Dervish
Diabolist
Diplomat
Dirgesinger
Disciple
Diviner
Djinncaller
Doomsayer
Dragonlord
Dragonrider
Dragonslayer
Dragoon
Dread
Dreadlord
Dreadnaught
Dreamwalker
Druid
Duelist
Duskblade
Earth Cleric
Earthspeaker
Elder
Elementalist
Emissary
Empath
Enchanter
Enforcer
Engineer
Envoy
Evoker
Executioner
Exile
Exorcist
Explorer
Factotum from D&D 3.5
Falconer
Fearmonger
Fencer
Fighter
Fingersmith
Firedancer
Fistfighter
Fleshwarper
Forrester
Frostmage
Fugative
Functionary
Fusilier
Gadgeteer
General
Genius
Geomancer
Gladiator
Godslayer
Grappler
Grave Robber
Gravecaller
Guardian
Guerilla
Gunslinger
Guru
Gypsy
Harbinger
Harpy
Harrier
Haruspex
Hatsune from Skillful Pixel Dungeon
Healer
Hedge Mage
Heirophant
Hemomancer (Blood Sage)
Herald
Herbalist
Hermit
Hero
Hexblade
Hexist
Hexmage
Hexweaver
Hierodule
Highwayman
Hivemaster
Hoodwink
Hospitalier
Houndmaster
Hunter
Hydromancer
Hymnist
Hypnotist
Illusionist
Impersonator
Incantatrix
Incanter
Incarnate
Infiltrator
Information Broker
Inkyo
Inquisitor
Interrogator
Investigator
Invoker
Jawbreaker
Jester
Jinx
Jotun
Juggernaut
Justicar
Justiciar
Kahuna
Kensai
Kidnapper
Knight
Lama
Lancer
Landroamer
Lasher
Lasserator
Legionnaire
Lich
Life Cleric (uber-healer)
Lightbringer
Lord
Loremaster
Luckbringer
Lurk
Luxem
Machinist
Mage-Blade
Magehunter
Mageknight
Mage-Slayer
Magic User
Magician
Magistrate
Magus
Malefactor
Malus
Man Beast
Maniac
Marauder
Mariner
Marksman
Marshal
Martial Artist
Masque
Mastermind
Medium
Mentalist
Mercenary
Merchant
Meretrix
Mesmerist
Messiah
Migrant / Vagrant
Mindbender
Miner
Minstrel
Missionary
Monk
Mountaineer
Mushakemono (from In the Company of Henge)
Musketeer
Myrmydon
Mysterion
Mystic
Namana
Nature Cleric
Necromancer
Nethermancer
Ninja
Noble
Nomad
Oathsworn
Occultist
Oceaneer
Onmyoji
Oracle
Outcast
Outlaw
Outrider
Paladin
Palmist
Paragon
Pariah
Pathfinder
Peddler
Percamenarius
Physician
Pioneer / Peon
Piper
Pirate
Plaguemancer
Planeswalker
Poisoner
Pope
Preacher
Predicant
Priest
Privateer
Prophet
Protector
Psion
Psionicist
Psithief
Psychic
Psychomancer
Pugilist
Puppeteer
Pursuer
Pyromancer
Qabalist
Quester
Ragime
Raider
Raindancer
Rake
Ranger
Ratcatcher
Reaver
Revenant
Riddler
Rifleman
Ritualist
Rog-kalem (from In the Company of Minotaurs)
Rogue
Ronin
Royal
Runecarver (this is a magical class in my mind)
Runelord
Runepriest
Runic
Saboteur
Sage
Saint
Samurai
Sandman
Sapper
Savage
Savant
Scavenger
Scholar
Scoundrel
Scout
Scribe
Scrier
Seasinger
Seer
Sensei
Sentinel
Shadowmancer
Shadowstalker
Shaman
Shapeshifter
Sheriff
Shieldbearer
Shukenja
Sibyl
Siegemaster
Siren
Skald
Skirmisher
Skycaptain
Slavemaster
Slaver
Slayer
Slimelord
Snakecharmer
Sneak
Sniper
Sohei
Soldier
Songmage
Soothsayer
Sorcerer
Sorseer
Soulblade
Soulguard
Soulknife
Spearman
Spellbinder
Spellbreaker
Spellknife
Spellthief
Spiritualist
Spiritwalker
Spy
Stalker
Stormlord
Stormmage
Strategist
Strider
Summoner
Survivor
Swashbuckler
Swordsman
Tactician
Taskmaster
Technomage
Telepath
Templar
Thaumaturgist
Theocrat
Theurge
Thief
Thrall
Tinkerer
Tormentor
Totemist
Trader
Transmogrifist
Transmuter
Trapsmith
Tribesman
Trickster
Truenamer
Undead-Slayer
Ur-Priest
Vagabond
Valkyrie
Vanguard
Vicar
Vident
Vigilante
Viking
Vindicator
Visionary
Vitalist
Vizier
Voidcaller
Voidpriest
Voodoo Witch
Wanderer
War Cleric
Warden
Warlock
Warlord
Warpriest
Warrior
Wayfarer
Weaponmaster
Weather Cleric
Weathermaster
Whoremaster
Wilder
Windcaller
Windrider
Witch
Witchdoctor
Wizard
Wonderworker
Wormtongue
Wrestler
Wu-jen
Wyrd
Wyrmcaller
Zealot
Zennist
