Multiple Crossovers FanFiction

Hatchling outside its nest

Hatchling outside its nest

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Wiedźmin | The Witcher - All Media Types
Characters
Harry Potter, Cirilla Fiona Elen Riannon, Fem Harry - Character
Tags
Not Beta Read Crack Treated Seriously Time Shenanigans No Angst Multiple Crossovers fem Harry is a menace to society violence is not the answer its the question and the answer is yes
For a long time Rose didnt know what love was.Oh she definitly knew what it looked like. When parents picked up their children from school, when they comforted or praised them.She saw it daily and was certainly envious of those that had it.But she wa...
So Our Fears can Become One (or: the Fanon to Canon Reality Show)

So Our Fears can Become One (or: the Fanon to Canon Reality Show)

F/F
M/M
Multi
G
Updated
11.04.2025
Fandom
9-1-1 (TV)
Characters
Original Characters, Evan "Buck" Buckley/Eddie Diaz (9-1-1 TV), Evan "Buck" Buckley, Eddie Diaz (9-1-1 TV), Evan "Buck" Buckley & Christopher Diaz & Eddie Diaz & Original Character(s), Original Characters - Relationship
Tags
Other Additional Tags to Be Added Grief/Mourning Memory Alteration Mystery Evan "Buck" Buckley and Eddie Diaz Are In Love Evan "Buck" Buckley and Eddie Diaz Being Idiots Multiple Crossovers Fanon Queer Relationships Fighting For Their Lives to Become Canon Evan "Buck" Buckley/Eddie Diaz First Kiss Characters Reading Fanfiction Characters React to Fandom Evan "Buck" Buckley and Eddie Diaz Visit Multiple Fictional Universes
"The Fanon to Canon Reality Show was my idea at first. I take responsibility for that — every bit of chaos, every broken heart, every tear dropped, that’s all on me. Buck and Eddie, though — I wasn’t expecting them to appear during the worst night of...
A Parallel World

A Parallel World

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Doctor Who Fantastic Beasts and Where to Find Them (Movies)
Characters
Original Female Character(s), Albus Dumbledore, Hakubi Washu
Tags
Crossover Multiverse Crossovers & Fandom Fusions Multiple Crossovers
A passage between parallel universes is supposed to be one way? Mariko wasn’t so sure of it when one day she actually crossed one during one of mommy’s testing runs when she wasn’t looking . . . . and came back.
Hogwarts Lord of Shadow

Hogwarts Lord of Shadow

F/F
F/M
Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Warhammer Fantasy Castlevania Lords of Shadow と 宿命の魔鏡 | Castlevania: Lords of Shadow & Mirror of Fate
Characters
Harry Potter, Ron Weasley, Hermione Granger, Tom Riddle | Voldemort, Harry Potter/Ginny Weasley, Bellatrix Black Lestrange, Hermione Granger/Ron Weasley, Hermione Granger/Ginny Weasley, Carmilla (Castlevania), Carmilla/Laura (Castlevania: Lords of Shadow), Erzsebet Báthory (Castlevania), Bathory Mengele | Butcheress
Tags
Alternate Universe - Canon Divergence Vampire Turning Crossover Mythical Beings & Creatures Multiple Crossovers Alternate Universe - Creatures & Monsters Department for the Regulation and Control of Magical Creatures (Harry Potter) Nymphs & Dryads
Il Mondo Magico/Wizaring World ha vissuto molto isolato rispetto al resto del mondo, e le novità e l'oscurità dall'esterno rischiano di travolgere la pace guadagnata.
𝕿𝖍𝖊 𝕮𝖔𝖑𝖑𝖊𝖈𝖙𝖎𝖔𝖓

𝕿𝖍𝖊 𝕮𝖔𝖑𝖑𝖊𝖈𝖙𝖎𝖔𝖓

F/M
Multi
Other
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling The Avengers (Marvel Movies) The Vampire Diaries (TV)
Characters
Regulus Black, Harry Potter, Loki (Marvel), Severus Snape, Draco Malfoy/Harry Potter, Draco Malfoy, Colin Creevey, Fred Weasley, Harry Potter/Severus Snape, Thorfinn Rowle, Oliver Wood, Cedric Diggory/Harry Potter,
Tags
Time Travel Alternate Universe Dark Harry Potter One Shot Female Harry Potter How Do I Tag Crossover Crossover Pairings Master of Death Harry Potter Multiple Crossovers Proceed with caution just in case!
𝘈𝘥𝘩𝘢𝘳𝘢 𝘗𝘰𝘵𝘵𝘦𝘳 𝘖𝘯𝘦 - 𝘚𝘩𝘰𝘵𝘴, 𝘔𝘪𝘯𝘪 𝘚𝘵𝘰𝘳𝘪𝘦𝘴 & 𝘜𝘯𝘧𝘪𝘯𝘪𝘴𝘩𝘦𝘥 𝘛𝘩𝘰𝘶𝘨𝘩𝘵𝘴.𝘍𝘦𝘦𝘭 𝘧𝘳𝘦𝘦 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘢𝘯𝘺 𝘳𝘦𝘲𝘶𝘦𝘴𝘵𝘴 𝘰𝘧 𝘱𝘢𝘪𝘳𝘪𝘯𝘨𝘴/𝘪𝘥𝘦𝘢𝘴 𝘺𝘰𝘶'𝘥 𝘭𝘪𝘬𝘦 𝘵𝘰 𝘴𝘦𝘦!!!𝐈 𝐝𝐨 𝐧𝐨𝐭 𝐨𝐰𝐧 𝐇𝐚𝐫𝐫𝐲 𝐏𝐨𝐭𝐭𝐞𝐫 𝐨𝐫 𝐚𝐧𝐲 𝐨𝐟 𝐭𝐡𝐞 𝐜𝐡𝐚𝐫𝐚𝐜𝐭𝐞𝐫𝐬!! (𝐓𝐡𝐢𝐬 𝐢𝐬 𝐅𝐚𝐧𝐟𝐢𝐜𝐭𝐢𝐨𝐧, 𝐭𝐡𝐢𝐧𝐠𝐬 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭. 𝐄𝐚𝐜𝐡 𝐬𝐭𝐨𝐫𝐲 𝐢𝐬 𝐬...
Jasmine Potter in Vampire Academy

Jasmine Potter in Vampire Academy

F/M
G
Updated
14.04.2025
Fandom
Game of Thrones (TV) Harry Potter - J. K. Rowling Marvel Cinematic Universe
Characters
Dimitri Belikov (Vampire Academy), Christian Ozera, Dimitri Belikov/Rose Hathaway, Rose Hathaway (Vampire Academy), Vasilisa Dragomir
Tags
Multiple Crossovers
Jasmine left Forks to go on a new adventure in a new world. When she realized where she ended up she was not interested in staying but a promise from Death changed her mind and she decided to play along in this new world. And pretty soon she grew a...
Bailando con el Diablo

Bailando con el Diablo

F/F
F/M
M/M
Other
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling The Vampire Diaries (TV) The Originals (TV)
Characters
Damon Salvatore, Kol Mikaelson, Elijah Mikaelson & Finn Mikaelson & Klaus Mikaelson & Kol Mikaelson & Rebekah Mikaelson, Kol Mikaelson & Damon Salvatore
Tags
Crossover Multiple Crossovers
100 años después de su separación vuelven a reunirse, pero nada los preparo para las dificultades que tendrán que afrontar para estar juntos.Amigos... Enemigos... Familia...Ya conocen el dicho "En el Amor y la Guerra Todo se Vale"
Magic is different here... (MLP x Harry Potter x Genshin Impact) (Season 1: Mondstadt, the City of Freedom)

Magic is different here... (MLP x Harry Potter x Genshin Impact) (Season 1: Mondstadt, the City of Freedom)

G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling 原神 | Genshin Impact (Video Game) My Little Pony Generation 4: Friendship Is Magic (Cartoon 2010)
Characters
Harry Potter, Amber (Genshin Impact), Kaeya (Genshin Impact), Ying | Lumine (Genshin Impact), Paimon (Genshin Impact), Albedo (Genshin Impact), Lisa (Genshin Impact), Jean (Genshin Impact), Twilight Sparkle (My Little Pony: Friendship is Magic), Spike (My Little Pony: Friendship is Magic), Sucrose (Genshin Impact), Katheryne (Genshin Impact)
Tags
Multiple Crossovers
A spell went wrong, sending the Princess of Friendship Twilight Sparkle and her small dragon companion Spike to another world.A young wizard named Harry Potter was all alone in the boys' dormitory in Hogwarts when suddenly a portal opened beneath him...
Saving Myself [Harry Potter Crossover]

Saving Myself [Harry Potter Crossover]

F/M
M/M
Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling The Avengers (Marvel Movies) Supernatural (TV 2005)
Characters
Harry Potter, Dean Winchester, Remus Lupin, Sirius Black, Hermione Granger, (More to Be Added)
Tags
Female Harry Potter Soulmates Crossover Pairings Time Travel Fix-It Evil Albus Dumbledore Multiple Crossovers Past Female Harry Potter/Dean Winchester
To prevent Haven Potter's suicide her godfathers, Sirius and Remus Black-Lupin, and her best friend, Hermione Granger, perform an illegal spell to send them back in time, only for said spell to go completely wrong and bring 17-year-old Haven and 18-y...
Book 1: How life changed. (discontinuted)

Book 1: How life changed. (discontinuted)

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Original Work Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Original Characters, Original Female Character(s), Original Male Character(s), Harry Potter, James Potter/Lily Evans Potter, Nico di Angelo/Will Solace, Nico di Angelo, Petunia Evans Dursley, Dudley Dursley, Vernon Dursley, Petunia Evans Dursley/Vernon Dursley, Hua Cheng/Xie Lian (Tian Guan Ci Fu),
Tags
Developing Relationship Father-Son Relationship Minor Character Death Abuse POV Multiple Crossover POV Alternating Harry Potter Has a Different Name Multiple Crossovers Mentioned Lily Evans Potter Mentioned James Potter
Harry just turned 5 and now he has voices in his HEAD. How will he deal with all of this? Will he escape the big hands of the dursley's or will he stay?
Fragments from three crossovers that never happened

Fragments from three crossovers that never happened

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Buffy the Vampire Slayer
Characters
Angel, Robin, Scrooge McDuck, Madam Pomfrey, Captain Janeway - Character, The Doctor from Star Trek Voyager, Spike, The Batman - Character
Tags
Multiple Crossovers
Once, some of my friends challenged me to write snippets from stories I never wrote. Here are three. Anyone who wants to add more or complete the ones you find, you are welcome.
LA After Midnight: The Annotations

LA After Midnight: The Annotations

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Vampire: The Masquerade Star Trek
Characters
Montgomery "Scotty" Scott, Bumblebee (Transformers), Angel (BtVS), Dracula, John Winchester, Harmony Kendall, Charles Emerson Winchester III, Harry Dresden, Mrs. Kendall, Mark Kendall, John "Hannibal" Smith, Templeton "Faceman" Peck,
Tags
Watchers Worldbuilding Crossover Meta Season/Series 04 Multiple Crossovers Fictional Movies Malkavian (Vampire: The Masquerade) Absinthe Kid Charles Gunn Frak (BSG 2003) Special Task Force Unicorn
Another guide to shout outs and references, this time for LA After Midnight.
The Conduits Journey

The Conduits Journey

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Marvel Cinematic Universe Marvel
Tags
Crossovers & Fandom Fusions Alternate Universe - Fusion Multiple Crossovers
We all know the typical Displaced Story.Someone goes to a convention, buys an item from a vendor and is sent to another world.But what if the vendor wasn't the one to send you?What if there was another reason you were sent there?Zach was not expectin...
Head Count: The Annotations

Head Count: The Annotations

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Star Trek Pirates of the Caribbean (Movies)
Characters
Jack Sparrow, Jim Gordon, Original Lupin Family Characters (Harry Potter), Harry Dresden, Hector Barbossa, Bob the Skull, Rocco (Boondock Saints)
Tags
Worldbuilding Immortality Crossover Meta Multiple Crossovers Appendixes Klingon Poetry (Star Trek)
A somewhat self-indulgent commentary on the shout-outs and references in Head Count and The One That Got Away.
The Interdimensional Goblet of Fire

The Interdimensional Goblet of Fire

Multi
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Fate/stay night & Related Fandoms World of Warcraft
Characters
Harry Potter
Tags
Multiple Crossovers Alternate Universe - World of Warcraft Fusion Pre-Final Fantasy VII Not Canon Compliant - Star Wars Prequel Trilogy
The Goblet of Fire has a problem. It's been asked to find Harry Potter, but can't find him in the world. Well, if The Harry Potter can't be found, perhaps A Harry Potter would do instead.
Watch

Watch

G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Harry Potter, Hermione Granger, Luna Lovegood
Tags
Character Death Trains Multiple Crossovers Spell Failure Engineering Research Spell Creation (Harry Potter) Economics
Harry accidentally creates a number of spells and the wizarding world will learn why you never anger an engineer, let alone two.
Recap of All My Fics

Recap of All My Fics

F/M
Gen
M/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Sherlock (TV) The Vampire Diaries (TV)
Characters
Oliver Queen, Jonathan Crane, Sherlock Holmes, John Watson, Mycroft Holmes, Damon Salvatore, Laurel Lance, Quentin Lance, Crowley (Good Omens), Lucifer Morningstar (Lucifer TV), Tommy Merlyn, Rory Gilmore,
Tags
Crossover Pairings Multiple Pairings Multiple Crossovers Quiver (pairing)
Inspired by the recaps on The Late Late Show, here is my recap of all my fics.
My Strange Desires

My Strange Desires

Multi
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling Christian Bible Shrek
Characters
Harry Potter, Jesus Christ, Lightning McQueen, Shrek - Character, Franklin Delano Roosevelt, Joseph Stalin, Shrek (Shrek), Jesus Christ (Christian Bible), Jesus Christ/Harry Potter, Jesus Christ/Shrek (Shrek), Jesus Christ/Lightning McQueen(Cars), Jesus Christ/Joseph Stalin,
Tags
Smut Fluff Angst Fluff and Smut Fluff and Angst Heaven Crossover Crossovers & Fandom Fusions Multiple Crossovers Roosevelt is a zombie Stalin is his young version McQueen will stay a car
Will Jesus fulfill his true desires?Find out :>
The Fandom Games

The Fandom Games

F/F
F/M
G
Updated
19.04.2025
Fandom
A Song of Ice and Fire & Related Fandoms Game of Thrones (TV) A Song of Ice and Fire - George R. R. Martin
Characters
Arya Stark, Harry Potter, Tony Stark, Peter Parker, Wade Wilson, Anakin Skywalker | Darth Vader, Leia Organa, Ron Weasley, Hermione Granger, Daenerys Targaryen, Harleen Quinzel, Legolas Greenleaf,
Tags
Slow Burn Character Death Angst with a Happy Ending Peter Parker Needs a Hug Crack Humor Fluff and Angst Attempt at Humor Found Family Light Angst Crack Treated Seriously Love Triangles
Peter Parker was already having a bad day before the elf fell out of the sky.Now he has to team up with a Jedi, a witch, a warrior, an elf and a princess and journey on a quest across storyworlds to save all fandom. Or else an unknown evil will rewr...
A Battle of Ten Armies; or, Fuck Humanity--Long Live the Titans!

A Battle of Ten Armies; or, Fuck Humanity--Long Live the Titans!

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling The Lord of the Rings - All Media Types Haikyuu!!
Characters
Harry Potter, James "Bucky" Barnes/Steve Rogers, James "Bucky" Barnes, Steve Rogers, Sherlock Holmes/John Watson, Sherlock Holmes, John Watson, Severus Snape, Draco Malfoy/Harry Potter, Draco Malfoy, Mikasa Ackerman, Jean Kirstein,
Tags
Fluff Unresolved Sexual Tension Unhealthy Relationships Major Character Injury Drunkenness Resolved Sexual Tension Public Sex Bondage Angst and Feels Spoilers Bonding Multiple Crossovers
An unnatural tornado rips through genres and deposits characters from nine fandoms outside Wall Rose during a Titan battle. Will they survive? More importantly, will their love survive???