Percy Jackson & Harry Potter FanFiction

In this world we live in.

In this world we live in.

Gen
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Percy Jackson, Sally Jackson (Percy Jackson), Hecate (Percy Jackson), Percy Jackson & Harry Potter, Thanatos (Percy Jackson)
Tags
Implied/Referenced Child Abuse Harry Potter is So Done Percy Jackson is a Mess Everyone is actually Mentioned Gabe Ugliano Awesome Sally Jackson (Percy Jackson) Demigod Harry Potter
In this world we live in, there are worlds upon worlds upon worlds that we know not about, do we? Perhaps we do, lying only on the pages of fantasy.That is what Harry Potter has thought about Greek Mythology, a mythology, a story, a collection to exp...
⭐Bajo el cielo estrellado⭐

⭐Bajo el cielo estrellado⭐

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Percy Jackson, Poseidon (Percy Jackson), Percy Jackson & Harry Potter, Percy Jackson/Harry Potter, Harry Potter/Percy Jackson, Hades (Olimpos)
En una noche estrellada te conoci y no me arrepiento
Nobody’s Soldier

Nobody’s Soldier

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Blaise Zabini, Theodore Nott, Percy Jackson, Order of the Phoenix, Percy Jackson & Harry Potter, Percy Jackson & Draco Malfoy
Tags
Kind Of Good Draco Malfoy Good Blaise Zabini Order of the Phoenix (Harry Potter) BAMF Percy Jackson Good Theodore Nott within reason No Bashing Amnesiac Percy Jackson Teaser chapter
Hera would've let the demigod sleep until he was needed, but Hecate proposed a good deal. She'd swear her support in the giant war and all she wanted was the son of Poseidon for a few months. Well, Hera had no use for him yet.Or…An amnesiac Percy sho...
🌅El lago del destino💞

🌅El lago del destino💞

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Poseidon (Percy Jackson), Hades (Percy Jackson), Percy Jackson & Harry Potter, Death (Harry Potter), Percy Jackson/Harry Potter, Poseidon (God of war)
Tags
Boys In Love
El amor es la cura de toda la tristeza que tengas.
Percy Jackson and the Hogwarts Mishap

Percy Jackson and the Hogwarts Mishap

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Minerva McGonagall, Draco Malfoy, Ron Weasley, Hermione Granger, Percy Jackson, Percy Jackson & Harry Potter
Tags
Short One Shot I Don't Even Know I forgot my tags
Percy "accidentally" finds himself at Hogwartsand chaos ensues
Myths, Magic and Stark

Myths, Magic and Stark

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Marvel Cinematic Universe Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Tony Stark, Ron Weasley, Hermione Granger, Percy Jackson, Annabeth Chase (Percy Jackson), Thalia Grace (Percy Jackson), Rachel Elizabeth Dare, Harry Potter & Tony Stark, Percy Jackson & Harry Potter, Percy Jackson & Tony Stark
Tags
Crack Treated Seriously I'm Sorry Hermione Granger is So Done Annabeth Chase is so Done (Percy Jackson) Pepper Potts is So Done BAMF Rachel Elizabeth Dare Dead Sally Jackson (Percy Jackson)
I'm sure you all know Harry Potter. Savior of the wizarding world. And Percy Jackson. Hero of Olympus. But what if their story was more than what it seemed to be on the surface? What if they were Brothers? And what if they had an uncle named Anthony...
Godly help

Godly help

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Minerva McGonagall, Draco Malfoy/Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Voldemort (Harry Potter), Pansy Parkinson, Hermione Granger & Harry Potter & Ron Weasley, Nico di Angelo/Will Solace, Percy Jackson,
Tags
Magic Other Additional Tags to Be Added Hogwarts School Demigods Bisexual Harry Potter Camp Half-Blood (Percy Jackson) Post-Second Wizarding War with Voldemort (Harry Potter) Post-Gaea & The Second Giant War (Percy Jackson) Demigod Ginny Weasley
Harry comes back to hogwarts to be there for the additionaly added year. Though, he does not expect to meet two new people he has never seen ever before, being all friendly with slytherins.
Lonely is a man without love

Lonely is a man without love

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Fleur Delacour, Sirius Black, Severus Snape, Draco Malfoy, Hermione Granger, Alastor "Mad-Eye" Moody, Tom Riddle | Voldemort, Albus Dumbledore, Viktor Krum, Percy Jackson, Cedric Diggory,
Tags
Angst Depression Other Additional Tags to Be Added Post-Traumatic Stress Disorder - PTSD Alcohol Abuse/Alcoholism Underage Smoking Smoking BAMF Percy Jackson Past Annabeth Chase/Percy Jackson Dead Sally Jackson (Percy Jackson) Dead Annabeth Chase (Percy Jackson) Overpowered Percy Jackson
Why should harry trust this new security guard. and does it have to do with the recent death eater attack as according to everyone this man is basically a younger Dumbledore.Between the pressure for the tri wizard tournament and the school hating him...
Myth meets Magic

Myth meets Magic

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan The Heroes of Olympus - Rick Riordan
Characters
Harry Potter, Ginny Weasley, Molly Weasley, Arthur Weasley, Harry Potter/Ginny Weasley, Percy Jackson, Annabeth Chase, Annabeth Chase/Percy Jackson, Annabeth Chase & Percy Jackson, Percy Jackson & Harry Potter, Harry Potter & Ginny Weasley, Annabeth Chase (Percy Jackson) & Ginny Weasley,
Tags
Post-Traumatic Stress Disorder - PTSD Trauma Post-War Crossover harry potter and percy jackson Myth meets magic Hinny and Percabeth Hinny meets Percabeth
If Hinny meets Percabeth! These are my favorite fictional couples, so I really wanted a story with just mainly them. A lot of HP and PJO/HOO crossovers I've read, are really biased towards PJO and make Harry really rude, and I find that annoying. So,...
Percy Jackson and the World of Witchcraft and Wizardry (rewritten)

Percy Jackson and the World of Witchcraft and Wizardry (rewritten)

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Severus Snape, Draco Malfoy, Draco Malfoy & Harry Potter, Percy Jackson, Athena (Percy Jackson), Annabeth Chase/Percy Jackson, Hecate (Percy Jackson), Percy Jackson & Harry Potter, Percy Jackson & Draco Malfoy
Tags
Other Additional Tags to Be Added Time Travel Out of Character Alternate Universe - Time Travel Percy Jackson Needs a Hug Fic Rewrite i still don’t know how to tag Percy Jackson is So Done More characters added later someone get him help
Percy Jackson has yet another quest, woo hoo!
The Morally Greys

The Morally Greys

F/M
Gen
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan Ancient Greek Religion & Lore
Characters
Original Characters, Original Male Character(s), Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Hermione Granger/Draco Malfoy, Dolores Umbridge, Blaise Zabini, Luna Lovegood, Theodore Nott, Hermione Granger & Harry Potter & Ron Weasley,
Tags
Alternate Universe - Canon Divergence Other Additional Tags to Be Added Light Angst Self-Indulgent Flashbacks Kinda Lucius Malfoy Being an Asshole Seer Luna Lovegood This Is Not Going To Go The Way You Think Morally Ambiguous Character Prophecy Demigod Shenanigans
In their fifth year at Hogwarts, Draco and Hermione's lives spiral into unexpected chaos. With Hermione’s obsession with dangerous potions, Draco’s crumbling confidence under his father’s harsh letters, and the group's darkening dynamics, their once-...
Scars and Prophecies

Scars and Prophecies

F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Severus Snape, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Albus Dumbledore, Luna Lovegood, Nico di Angelo/Will Solace, Percy Jackson, Annabeth Chase (Percy Jackson), Nico di Angelo,
Tags
References to Depression Action/Adventure Anxiety Disorder Mystery Severitus | Severus Snape is Harry Potter's Parent Manipulative Albus Dumbledore Dumbledore thinks his Word is Law Harry Potter doesn’t trust anybody Except for maybe Hermione and Ron Everyone thinks Slytherins are little shits but really it’s just Dumbledore Watch out Hermione
The only bright spot in Harry Potter’s life is that he’s a wizard. But then he sees Severus Snape one night, and everything changes.Meanwhile, something happens and Hermione and Ron are along for the ride, as usual.—After Bekendorf’s death in the sum...
My Child

My Child

Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Original Characters, Harry Potter, Hermione Granger, Percy Jackson, Annabeth Chase (Percy Jackson), Nico di Angelo, Dionysus (Percy Jackson), Chiron (Percy Jackson), Percy Jackson & Harry Potter, Death (Harry Potter), Annabeth Chase (Percy Jackson) & Harry Potter, Nico di Angelo & Harry Potter,
Tags
Slow Burn Mystery Demigod Harry Potter Big Brother Percy Jackson Overprotective Characters
Broken, discarded, damaged, beyond repair. Where was he? Why was everything so dark? Where was everybody?A cold hand, but a warm heart, they took him away. Why couldn't he remember? He was left alone by his aunt, but why did she look different?It bur...
Unleashing the Sea

Unleashing the Sea

F/M
Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Percy Jackson, Annabeth Chase (Percy Jackson), Zeus (Percy Jackson), Poseidon (Percy Jackson), Hades (Percy Jackson), Annabeth Chase/Percy Jackson, Sally Jackson (Percy Jackson), Amphitrite (Percy Jackson), Percy Jackson & Harry Potter, Sally Jackson/Poseidon (Percy Jackson), Amphitrite/Poseidon (Percy Jackson),
Tags
BAMF Harry Potter Protective Poseidon (Percy Jackson) Master of Death Harry Potter BAMF Percy Jackson Harry Potter-centric Poseidon-centric (Percy Jackson) Harry Potter is Poseidon (Percy Jackson) Poseidon Loves Percy Jackson Poseidon is a Little Shit (Percy Jackson)
Old Fic / Up for AdoptionAfter accepting an Offer from the three Fates, the God Poseidon will be the Turning Point of the Upcoming Conflict and bring a much needed Change to the Divine World.
Sword and Charm.

Sword and Charm.

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Hermione Granger & Harry Potter & Ron Weasley, Percy Jackson, Annabeth Chase (Percy Jackson), Rachel Elizabeth Dare, Nico di Angelo, Hedwig (Harry Potter), Grover Underwood, Chiron (Percy Jackson),
Tags
I'm Sorry Gay Male Character Obsessive Harry Potter Bisexual Male Character Magically Powerful Harry Potter Crossover Pairings Crossovers & Fandom Fusions Bisexual Percy Jackson Harry Potter In Love Camp Half-Blood (Percy Jackson) Percy Jackson Needs a Hug Powerful Percy Jackson
A lucky/unlucky meeting between two of the most powerful heroes in the whole world bring sparkles and falling in the sea.Harry after what happened in with the goblet of fire and the three wizards tournament is cut off by Dumbledore and the Magic Worl...
Potter Luck | HPxPJO | WTM

Potter Luck | HPxPJO | WTM

F/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Draco Malfoy, Ginny Weasley, Neville Longbottom, George Weasley, Luna Lovegood, Percy Jackson, Annabeth Chase (Percy Jackson), Thalia Grace (Percy Jackson), Apollo (Percy Jackson), Nico di Angelo, Cedric Diggory/Harry Potter,
Tags
Suicidal Thoughts Angst with a Happy Ending Implied/Referenced Child Abuse Child Abuse Female Harry Potter Crossover Master of Death Harry Potter Immortal Harry Potter Mentions of Suicide Broken Promises Characters Watching Harry Potter Movies Death of Loved Ones
Percy Jackson loves his family. However, the majority of his mothers past in the wizarding world is unknown to him.Her past is secret to him. His brother, Teddy, won't tell him more about their mother's past nor their red-headed relatives in England....
Idk man I just real quick put this together one shot???

Idk man I just real quick put this together one shot???

G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Ron Weasley, Hermione Granger, Percy Jackson, Annabeth Chase (Percy Jackson), Grover Underwood, Annabeth Chase & Percy Jackson, Percy Jackson & Grover Underwood, Annabeth Chase & Percy Jackson & Grover Underwood, Percy Jackson & Harry Potter, Percy Jackson & Everyone, Annabeth Chase (Percy Jackson)/Harry Potter
Tags
they are all besties to lazy to proof read
Harry Potter, Ron Weasley, and Hermione Granger get pulled into the world of percy jackson.Tell me if you want me to write more if this.Also tell me if there is any errors.
Champions of Fate

Champions of Fate

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Remus Lupin, Sirius Black, Neville Longbottom, Albus Dumbledore, Percy Jackson, Apollo (Percy Jackson), Poseidon (Percy Jackson), Hecate (Percy Jackson), Neville Longbottom & Harry Potter, Percy Jackson & Harry Potter, Hestia (Percy Jackson),
Tags
Manipulative Albus Dumbledore kinda but not really??? Well-Meaning Albus Dumbledore He's still stupid though
The Moirai are unamused, for a lack of better term, with two of their Great Prophecy Chosens' potential being squandered again and again. They decide to take it upon themselves to set a better plan in motion, linking several worlds together in a way...
Син Бога Моря

Син Бога Моря

Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Percy Jackson, Percy Jackson & Harry Potter
Tags
Prophecy Harry Potter Has ADHD Harry Potter is Not a Potter Short Drabble James Potter is Not Harry Potter's Parent Demigod Harry Potter Dyslexic Harry Potter Percy Jackson Has ADHD Camp Half Blood Dyslexic Percy Jackson Neptune is Harry Potter's Parent Demigod Percy Jackson
В нього є тягар на плечах від Пророцтва. Від того, що він напівкровка. Що він син бога, і цим все його життя визначене.
Braided Bread and Magic Spells (Rewriting)

Braided Bread and Magic Spells (Rewriting)

G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Fleur Delacour, Draco Malfoy, Ron Weasley, Hermione Granger, Viktor Krum, Hermione Granger & Harry Potter & Ron Weasley, Percy Jackson, Annabeth Chase (Percy Jackson), Hazel Levesque, Nico di Angelo, Cedric Diggory,
Tags
Tooth-Rotting Fluff Post-Traumatic Stress Disorder - PTSD Friendship Platonic Cuddling Platonic Relationships Coping Stress Baking Not Canon Compliant - Harry Potter and the Goblet of Fire Anyways Book 4: Harry Potter and the Goblet of Fire its cute the demigods be goin thru it
It was too much to ask for a single, uneventful year, wasn't it?Oh well, Percy didn't have much plans anyway. His plans were staying in his mom's apartment, taking Estelle to school and picking her up. Maybe getting a part-time job. He and Annabeth w...