This is an exhaustive list of internal names/quests up to RS3.
530 came out Feb 2009, so check for quests up to there if you're looking for a name.
You'll notice some of the earlier reworked quests have been renamed in RS3...
follow the "pre-rework" column instead and check the RS wiki to see what it was originally.

Year   Quest Name                                   Quest Prefix             Formerly (eg pre-rework)
2001   Cook's Assistant                             cook
       Demon Slayer                                 dslay                    demonslayer or demon
       The Restless Ghost                           priest
       Sheep Shearer                                sheep
       Shield of Arrav                              phoenixgang              blackarmgang
       Ernest the Chicken                           haunted
       Vampyre Slayer                               vampire
       Imp Catcher                                  imp
       Stolen Hearts                                ozan1                    prince
       Diamond in the Rough                         ozan2
       What's Mine Is Yours                         pnr                      doric
       Witch's Potion                               hetty
       The Knight's Sword                           squire
       Goblin Diplomacy                             gobdip
       Pirate's Treasure                            hunt
       Dragon Slayer                                dragon
2002   Druidic Ritual                               druid_quest_2            druid
       Lost City                                    zanaris
       Witch's House                                ball
       Merlin's Crystal                             arthur
       Heroes' Quest                                hero
       Bar Crawl                                    barcrawl
       Scorpion Catcher                             scorpcatcher
       Family Crest                                 crest
       Tribal Totem                                 totem
       Fishing Contest                              fishingcompo
       Monk's Friend                                drunkmonk
       Temple of Ikov                               ikov
       Clock Tower                                  cog
       Holy Grail                                   grail
       Tree Gnome Village                           tree
       Fight Arena                                  arena
       Hazeel Cult                                  hazeelcult
       Sheep Herder                                 sheepherder
       Plague City                                  elena
       Sea Slug                                     seaslug
       Waterfall Quest                              waterfall
       Biohazard                                    biohazard
       Jungle Potion                                junglepotion
       The Grand Tree                               grandtree
2003   Shilo Village                                zombiequeen
       Underground Pass                             upass
       Observatory Quest                            itgronigen
       The Tourist Trap                             desertrescue
       Watch Tower                                  itwatchtower
       Dwarf Cannon                                 mcannon
       Murder Mystery                               murder
       The Dig Site                                 itexam
       Gertrude's Cat                               fluffs
       Legends' Quest                               legends
       Rune Mysteries                               ariane1                  runemysteries
       Rune Memories                                ariane2
2004   Big Chompy Bird Hunting                      chompybird
       Elemental Workshop I                         elemental_workshop
       Priest in Peril                              priest
       Nature Spirit                                druidspirit
       Death Plateau                                death
       Troll Stronghold                             troll
       Tai Bwo Wannai Trio                          tbwt
       Regicide                                     regicide
       Eadgar's Ruse                                eadgar
       Shades of Mort'ton                           morttonquest
       The Fremennik Trials                         viking
       Horror from the Deep                         horror
       Throne of Miscellania                        misc
       Monkey Madness                               mm
       Haunted Mine                                 hauntedmine
2005   Troll Romance                                troll_love
       In Search of the Myreque                     route
       Creature of Fenkenstrain                     fenk
       Roving Elves                                 roving_elves
       Ghosts Ahoy                                  ahoy
       One Small Favour                             onesmallfavour
       Mountain Daughter                            mdaughter
       Between a Rock�                              dwarfrock
       The Feud                                     feud
       The Golem                                    golem
       Desert Treasure                              deserttreasure
       Icthlarin's Little Helper                    ics
       Tears of Guthix                              tog
       Zogre Flesh Eaters                           zogre
       The Lost Tribe                               lost_tribe
       Giant Dwarf                                  giantdwarf
       Enter the Abyss                              abyss
       Recruitment Drive                            rd
       Mourning's End                               mourning
       Forgettable Tale of a Drunken Dwarf          forget
       The Curse of Zaros                           secret_ghost
       Garden of Tranquillity                       garden
       A Tail of Two Cats                           twocats
       Wanted!                                      wanted
       Mourning's End Part II                       mourning
       Rum Deal                                     deal
       Shadow of the Storm                          agrith
       Making History                               makinghistory
       Rat Catchers                                 ratcatch
       Spirits of the Elid                          elid
       Devious Minds                                devious
2006   Hand in the Sand                             handsand
       Enakhra's Lament                             enakh
       Cabin Fever                                  fever
       A Fairy Tale I - Growing Pains               fairy
       Recipe for Disaster                          hundred
       Recipe for Disaster: Freeing the Mountain Dwahundred_dwarf
       Recipe for Disaster: Freeing the Goblin Gener100goblin
       Recipe for Disaster: Freeing Pirate Pete     100_pirate
       Recipe for Disaster: Freeing the Lumbridge Sa100guide
       Recipe for Disaster: Freeing Evil Dave       hundred_dave
       Recipe for Disaster: Freeing Skrach Uglogwee 100_ogre
       Recipe for Disaster: Freeing Sir Amik Varze  chicken
       Recipe for Disaster: Freeing King Awowogei   hundred_ilm
       In Aid of the Myreque                        myreque_2
       A Soul's Bane                                soulbane
       Rag and Bone Man                             rag
       Swan Song                                    swansong
       Royal Trouble                                royal
       Death to the Dorgeshuun                      dttd
       A Fairy Tale II - Cure a Queen               fairy2
       Lunar Diplomacy                              lunar
       The Eyes of Glouphrie                        eyeglo
       The Darkness of Hallowvale                   myq3
       The Slug Menace                              slug2
       Elemental Workshop II                        elemental_quest_2
       My Arm's Big Adventure                       myarm
       Enlightened Journey                          zep
       Eagles' Peak                                 eaglepeak
       Animal Magnetism                             anma
2007   Contact!                                     contact
       Lair of Tarn Razorlor                        lotr
       Cold War                                     peng
       The Fremennik Isles                          fris
       The General's Shadow                         shadow_maj
       Tower of Life                                tol
       The Great Brain Robbery                      brain
       What Lies Below                              surok
       The Hunt for Surok                           dsd
       Olaf's Quest                                 olaf
       Another Slice of H.A.M.                      slice
       Dream Mentor                                 dream
       Grim Tales                                   grim
       King's Ransom                                kr
       The Path of Glouphrie                        pog
       Back to my Roots                             roots
       One Foot in the Grave                        handsand2
       Land of the Goblins                          lotg
       Hopespear's Will                             hopespears_will
2008   Dealing with Scabaras                        scab
       Wolf Whistle                                 wolf_quest_2             wolf
       As a First Resort                            afr
       Catapult Construction                        catcon
       Kennith's Concerns                           ken
       Legacy of Seergaze                           myq4
       Perils of Ice Mountain                       icemt
       TokTz-Ket-Dill                               dillo
       Smoking Kills                                smki
       Desert Slayer Dungeon                        smki_miniquest
       Rocking Out                                  rocko
       Spirit of Summer                             sum1
       Meeting History                              hist
       All Fired Up                                 firedup
       Summer's End                                 sum2
       Defender of Varrock                          zemo
       Swept Away                                   swept
       Purple Cat                                   swept_cat
       While Guthix Sleeps                          luc2
       Myths of the White Lands                     motwl
2009   In Pyre Need                                 phoenix
       The Chosen Commander                         chosen
       Glorious Memories                            glomem
       The Tale of the Muspah                       mah1
       Missing My Mummy                             mom2
       Hunt for Red Raktuber                        peng_rak
       The Curse of Arrav                           mah3
       Fur 'n Seek                                  rag2
       Forgiveness of a Chaos Dwarf                 ra3
       Within the Light                             wtl
       The Temple at Senntisten                     mah4
       Blood Runs Deep                              evq (Epic Viking Quest)
2010   Nomad's Requiem                              nom
       Rune Mechanics                               rm
       Blood Pact                                   lumbcat
       Buyers and Cellars                           thigui (Thieves' Guild)
       From Tiny Acorns                             caper_acorns
       Lost Her Marbles                             caper_marbles
       A Guild of Our Own                           caper_ourown
       A Fairy Tale III - Battle at Ork's Rift      ft3
       Elemental Workshop III                       elem_3
       Quiet Before the Swarm                       vkq1
       Love Story                                   love
       A Void Dance                                 vkq2
       Gunnar's Ground                              romcom
       The Void Stares Back                         vkq3
       Do No Evil                                   apmeken
2011   King of the Dwarves                          ra4
       The Prisoner of Glouphrie                    glo3
       Elemental Workshop IV                        elem_4
       A Clockwork Syringe                          acs
       Three's Company                              fremsaga_signature
       Vengeance                                    fremsaga_vengeance
       Thok It To 'Em                               fremsaga_thok
       Deadliest Catch                              deadly
       Salt in the Wound                            slug3
       The Branches of Darkmeyer                    myq5
       Ritual of the Mahjarrat                      mah5
       One Piercing Note                            opn
2012   The Firemaker's Curse                        fmc
       Let Them Eat Pie                             ltep
       The Elder Kiln                               tzhaar2
       Nadir                                        fremsaga_bilrach
       Thok Your Block Off                          fremsaga_thok2
       Song from the Depths                         qbd1
       Carnillean Rising                            carni
       Some Like It Cold                            peng_pow
       Doric's Task I                               pnr_artisan_task
       Doric's Task II                              pnr_denulth_task
       Doric's Task III                             pnr_goblin_task
       Doric's Task IV                              pnr_artisan_task2
       Doric's Task V                               pnr_gnome_task
       Doric's Task VI                              pnr_skulgrimen_task
       Doric's Task VII                             pnr_santiri_task
       Doric's Task VIII                            pnr_monkey_task
       Boric's Task I                               pnr_boric_coal_task
       Boric's Task II                              pnr_boric_ore_task
       Boric's Task III                             pnr_boric_guild_task
       The Brink of Extinction                      tzhaar3
       Wandering Ga'al                              tzhaar3_eegg
2013   Koschei's Troubles                           kharshai
       The World Wakes                              tsd (The Sleeping Dog)
       Bringing Home the Bacon                      bacon
       The Death of Chivalry                        owen1                    spy
       Birthright of the Dwarves                    ra5
       Missing, Presumed Death                      sliske1
2014   One of a Kind                                ooak
       Mahjarrat Memories                           mahmem
       Fate of the Gods                             tpr (The Purple Rose)
       A Shadow over Ashdale                        ash1
       The Mighty Fall                              tmf
       Plague's End                                 me3 (Mourning's End Part III)
       Broken Home                                  house
       Heart of Stone                               egq (Elder God Quest)
2015   Dishonour among Thieves                      sliske2
       Dimension of Disaster                        q200
       Dimension of Disaster: Shield of Arrav       q200_soa
       Dimension of Disaster: Demon Slayer          q200_ds
       Dimension of Disaster: Defender of Varrock   q200_dov
       Dimension of Disaster: Curse of Arrav        q200_coa
       Hero's Welcome                               dov (Death of V)
       The Light Within                             seren (Seren quest)
       The Lord of Vampyrium                        myq6
       Call of the Ancestors                        goebie1
       Beneath Cursed Tides                         tutisland
2016   Nomad's Elegy                                nomel
       Tales of the God Wars                        gwd2_miniquest
       Benedict's World Tour                        nxtwt (NXT World Tour)
       In Memory of the Myreque                     myq7_memorial
       The Lost Toys                                myq7_lost_toys
       River of Blood                               myq7
       Kindred Spirits                              sister (Barrows Sister quest)
       Gower Quest                                  gower
       Tales of Nomad                               nomel_pq
       Children of Mah                              fotg2
       Impressing the Locals                        elr0
       Flag Fall                                    elr1_minq_flag
       Head of the Family                           elr1_minq_head
       Spiritual Enlightenment                      elr1_minq_slayer
       Jed Hunter                                   elr1_minq_jed
       Eye for an Eye                               elr2_minq_cyclosis
       Harbinger                                    elr2_minq_harbinger
       Tuai Leit's Own                              elr2_minq_tuaileit
       Ghosts from the Past                         elr2_minq_exturtles
       Damage Control                               elr2_minq_goshima
       Final Destination                            elr2_minq_finale
       Sliske's Endgame                             endgame
2017   Back to the Freezer                          peng_bttf
       The Jack of Spades                           ozan3
       Crocodile Tears                              crondis
       Our Man in the North                         het
       'Phite Club                                  pharoah
       Evil Dave's Big Day Out                      dave
2018   Pieces of Hate                               piratefinale
       Rebuilding Edgeville                         mah5_edge
       You Are It                                   trail
       The Needle Skips                             tns
       Violet is Blue                               xmas18
2019   Chef's Assistant                             cheesecake
       Curse of the Black Stone                     elitedungeons
       Desperate Times                              charos
       Helping Laniakea                             dino_laniakea_fetch
       Father and Son                               dino_hunter_master
2020   Once Upon a Slime                            valentines2020
       Desperate Measures                           dm
       Sins of the Father                           kerapac_dnd
       Raksha, the Shadow Colossus                  dino_boss
       Violet is Blue Too                           vib2
2021   The Vault of Shadows                         trindine
       Foreshadowing                                out1
       Tortle Combat                                tortle_combat
       Heartstealer                                 heartstealer
       Azzanadra's Quest                            azzanadra
       Flashback                                    out2
       Battle of the Monolith                       egwd_prerelease
       City of Senntisten                           senntisten
       Fortunes                                     out3
       Finale                                       out4
       Once Upon a Time in Gielinor                 out0
2022   Eye of Het I                                 duel_arena_removal
       Eye of Het II                                duel_arena_removal_part2
