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Blaze Speedster by killerssg reviews
Naruto is eight years old when the Kyuubi attack happens and life changes for him. Now eight years later, he finds out that his family who he thought was dead is actually alive. Being so upset he decides to quit being a shinobi knowing that everyone he thought he was friends with was on the plan and leaves Konoha. Slight Minato/Kushina bashing and Jiraiya bashing. Harem.
Crossover - Flash & Naruto - Rated: M - English - Chapters: 5 - Words: 59,738 - Reviews: 91 - Favs: 379 - Follows: 428 - Updated: 2/18 - Published: 10/9/2023 - Naruto U., Mikoto U.
The Avenging Flash (Book One) by G4dgetJunior reviews
In an alternate universe, Spiderman does not come into existence. Instead, a different hero rises to the call. The Flash! Steve x Natasha. Barry X Kara.
Crossover - Flash & Avengers - Rated: T - English - Sci-Fi/Adventure - Chapters: 8 - Words: 16,138 - Reviews: 15 - Favs: 26 - Follows: 28 - Updated: 2/18 - Published: 8/6/2023 - Barry A./The Flash, Eobard T./Impostor Harrison W./Reverse-Flash, Black Widow/Natasha R., Iron Man/Tony S. - Complete
Harry Potter: Heir of Nabu by bhilton4j2
After the Battle of Hogwarts, Harry Potter decides to keep the Elder Wand. However, Ron and Ginny true intentions come out. Harry decides to leave for good. Best place for a fresh start. Los Angeles. Harry finds a new love with a famous celebrity and discovers his mother's side it more magical than he thought
Crossover - Harry Potter & Flash - Rated: M - English - Chapters: 10 - Words: 8,987 - Favs: 35 - Follows: 48 - Updated: 2/15 - Published: 2/14
Heroes Collide by UltraPhantom reviews
Barry, Oliver, Kara, and the rest of the heroes had just defeated the Dominator Invasion. They can finally rest...not. After the battle, the Dominators had one last trick that sent the Trinity into the MCU. They meet other heroes as they try their best to get them home. Along the way, the Trinity decided to help their world with their own threats. AMCU: 1
Crossover - Flash & Avengers - Rated: T - English - Adventure/Drama - Chapters: 9 - Words: 18,399 - Reviews: 60 - Favs: 66 - Follows: 81 - Updated: 2/10 - Published: 10/24/2021 - Barry A./The Flash, Oliver Q./The Arrow, Captain America/Steve R., Iron Man/Tony S.
The PJ masks meet The Flash by PJ Masks 2023 reviews
In a town called Tarabiscoville, a boy named Connor gets hit by particle excelerator and becomes none other than… Catboy. but his journey had just begun. due to the death of his sister Wendy, who was killed by none other than the reverse Cameron. Connor would have to leave his life and live in Central city. Where he will meet another speedster named The Flash. AKA Barry Allen.
Crossover - PJ Masks & Flash - Rated: K - English - Adventure - Chapters: 10 - Words: 12,569 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 2/9 - Published: 8/18/2022 - Barry A./The Flash
The Second Run by barry-thawne2
Barry Allen has lived his life, he was happy with his wife Iris West-Allen and awaited the arrival of his daughter. However things went south, when his old friend Eddie Thawne was resurrected as the Avatar of the Negative Speedforce. Barry was faced with his biggest challenge and he couldn't stop him, as the Negative Speedforce has won Oliver Queen gives Barry a second chance.
Crossover - Power Rangers & Flash - Rated: T - English - Adventure/Romance - Chapters: 2 - Words: 3,835 - Favs: 3 - Follows: 3 - Updated: 2/9 - Published: 2/7
Flashpoint Mayhem by TrueHorror88 reviews
Another victory for the team, yet someone was unable to celebrate that and chose to make a world-shaking decision. Barry saved his mother from death, changing his past and his present, but it also affected others without him knowing. Seth and his family are just as affected, maybe more. The team faces newer threats, but they're not new to the Lethal Protector. They're threats.
Crossover - Flash & Venom - Rated: M - English - Adventure/Romance - Chapters: 22 - Words: 718,775 - Reviews: 105 - Favs: 150 - Follows: 155 - Updated: 1/31 - Published: 4/18/2021 - [Dr. Caitlin S., OC] Killer Frost
Accidental Meeting by UltraPhantom reviews
After accidental getting stuck in Kara's world, Barry was ready to go home. Unfortunately, the Multiverse had other plans as the fastest man alive ends up in the Originals World. There Barry must decide on what to do as well as to who to trust. But can Barry get home before he gets too rope into the Michaelson's battle? AM: 1
Crossover - Flash & Originals - Rated: T - English - Supernatural/Friendship - Chapters: 3 - Words: 7,822 - Reviews: 12 - Favs: 20 - Follows: 20 - Updated: 1/20 - Published: 9/10/2023 - Barry A./The Flash, Klaus M., Elijah M., Rebekah M.
DONDE SEA, CUANDO SEA (THE FLASH X LEGENDS OF TOMORROW WHITEFLASH) by KingMaster2526
Historia ambientada en el 3x19 de The Flash -lo que sea por una hermana- -SCARLET CANARY / WHITEFLASH- AU
Crossover - Flash & Legends of Tomorrow - Rated: T - Spanish - Hurt/Comfort/Family - Chapters: 6 - Words: 26,483 - Favs: 3 - Follows: 3 - Updated: 1/14 - Published: 2/26/2022 - Barry A./The Flash, Cisco R., Sara Lance/White Canary, Ray Palmer/Atom
Infinity Crisis: Fall of Earth 3 by Sentinel of Stories reviews
As the Anti-matter wave approaches, the heroes of Earth 3 band together to make a desperate final stand against their seemingly inevitable end.
Crossover - Flash & Ben 10 - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 4,624 - Reviews: 6 - Favs: 9 - Follows: 9 - Published: 1/10 - Jay G./The Flash, Patty S., Max T., Rook
PERFECT STRANGERS (KARRY) by KingMaster2526
Dos perfectos desconocidos que fueron obligados por sus mejores amigos asisten a una noche de karaoke y terminan creando un concierto improvisado y teniendo una noche inolvidable
Crossover - Flash & Supergirl - Rated: T - Spanish - Romance - Chapters: 6 - Words: 9,710 - Favs: 2 - Follows: 2 - Updated: 1/8 - Published: 12/8/2023 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D.
BETTER ANGELS (KARRY SUPERFLASH) by KingMaster2526 reviews
¿alguna vez te han dicho que eres un ángel?- pregunto Barry dulcemente a lo que Kara nego juguetonamente- pues lo eres, Kara Danvers o Kara Zor-El. porque ese es tu nombre alienigena, porque eres una alienigena y creo que eso es genial- ambos rieron fuertemente mientras se perdían en la mirada del otro -y tu el mio, Barry Allen- respondió Kara con una dulce sonrisa SUPERFLASH
Crossover - Flash & Supergirl - Rated: T - Spanish - Romance/Family - Chapters: 18 - Words: 124,630 - Reviews: 9 - Favs: 13 - Follows: 15 - Updated: 1/8 - Published: 12/30/2021 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D.
TU, YO Y ELLA CONTRA EL MUNDO (SAVERFROST) by KingMaster2526
Barry continua su lucha contra Savitar para evitar que este asesine a Iris pero la lucha empieza a ponerse muy cuesta arriba y el tiempo corre por lo que decide pedir ayuda a cierta chica de acero para que lo ayude contra Savitar. Kara acepta sin embargo en cuanto la chica de acero pone un pie en Tierra-1 cosas extrañas comienzan a sucederle.
Crossover - Flash & Supergirl - Rated: M - Spanish - Hurt/Comfort - Chapters: 5 - Words: 11,852 - Updated: 1/8 - Published: 12/8/2023 - Barry A./The Flash, Savitar, Killer Frost, Earth-X Kara/Overgirl
CW CRISIS ON INFINITE EARTHS FANFICTION: by JediBender12
What has been buildup since 2014 of the show now has come Flash and his Friends must prepare for a Crisis that could Change everything in the Multiverse but along the way Death itself finds its way to the infinite universes and now The League must defend Earth 38 or it too will be gone from existence.
Crossover - Flash & Arrow - Rated: T - English - Drama/Adventure - Chapters: 4 - Words: 23,590 - Favs: 9 - Follows: 5 - Updated: 1/3 - Published: 1/8/2020 - Complete
A Post-Crisis Christmas by Ki11er18001
During the first Christmas after Crisis on Infinite Earths, Barry and Caitlin host a small celebration at their home where they eat, drink, laugh, and also take the time to remember a dear friend who cannot be there. Apologies for the bad summary. If you are a fan of Iris or Felicity then DO NOT read as they do get insulted.
Crossover - Flash & Arrow - Rated: T - English - Friendship/Hurt/Comfort - Chapters: 1 - Words: 1,570 - Favs: 5 - Follows: 4 - Published: 12/23/2023 - [Barry A./The Flash, Dr. Caitlin S.] [Roy H./Arsenal, Thea Q.] - Complete
Barry's Choice by Nightwing Josh reviews
Possible One-Shot. Based on What If Universe's "Flash and Spider-Man: Book 2 of the Spiderverse." Barry was in a relationship with Iris for years. But Post-Crisis, he finds himself married to his ex, Patty Spivot. He needs to choose who he loves, so he asks advice from his mentor and superhero partner, Spider-man. Spoilers: This is Anti-WestAllen.
Crossover - Spider-Man & Flash - Rated: T - English - Romance/Drama - Chapters: 1 - Words: 3,206 - Reviews: 1 - Favs: 2 - Follows: 2 - Published: 12/11/2023 - [Barry A./The Flash, Patty S.] Peter P./Spider-Man - Complete
New Justice: Madness of the League by CharmedMilliE- Karry Master reviews
Summer 2022 and in Gotham the Gotham heroes are dealing with madness brought on by relatives of Batman. The rest of the league is enjoying a somewhat quiet summer though.
Crossover - Flash & Supergirl - Rated: T - English - Chapters: 12 - Words: 89,932 - Reviews: 56 - Favs: 19 - Follows: 14 - Updated: 12/10/2023 - Published: 2/19/2023 - OC, Kara D./Supergirl
Admin Assistance by T0rti reviews
Kara Danvers was not her cousin. She didn't don tights and soar through the skies. Nope. She kept her head down and worked in the shadow of a legend, taking care to stay far away from the wild and weird. That is until the wild and weird dragged her to it on its own. Waking up in the broken remains of a particle accelerator was not on her schedule this week.
Crossover - Flash & Supergirl - Rated: T - English - Adventure/Friendship - Chapters: 4 - Words: 14,186 - Reviews: 4 - Favs: 19 - Follows: 25 - Updated: 12/9/2023 - Published: 7/3/2023 - Barry A./The Flash, Iris W., Eobard T./Impostor Harrison W./Reverse-Flash, Kara D./Supergirl
The Frosty Diaries by Killer Cold Hearts reviews
Damon Salvatore takes in a little girl, Caitlin Snow. He looks after her and eventually sends her to Central City, where she has always wanted to go. In the course of time, things have change and Caitlin is not the same little girl Damon saved all those years ago. She is colder, icier, and more deadly than ever. Can Damon bring his adorable little sister back?
Crossover - Flash & Vampire Diaries - Rated: K+ - English - Family/Hurt/Comfort - Chapters: 6 - Words: 4,648 - Reviews: 8 - Favs: 27 - Follows: 33 - Updated: 12/1/2023 - Published: 5/17/2017
Something Else by Zuiri
Mick x Caitlin, following the events of "It Had to Be You." Multiple chapters. In an attempt to save the Legends from a mysterious group out to destroy them, Caitlin joins the team and begins a chaotic adventure through time.
Crossover - Flash & Legends of Tomorrow - Rated: M - English - Adventure/Romance - Chapters: 5 - Words: 30,882 - Favs: 1 - Follows: 2 - Updated: 12/1/2023 - Published: 1/9/2023
The Hitchhiker's Guide to the Millma Verse by Captain Sigma- Karry Co-Master reviews
With so many worlds in the multiverse, Hitchhiking Kayla enlists Mutant Cisco to explore, finding potential friends and enemies along the way. Continuing story. Part of the Millma Verse.
Crossover - Flash & Supergirl - Rated: K - English - Adventure/Sci-Fi - Chapters: 26 - Words: 164,493 - Reviews: 114 - Favs: 32 - Follows: 20 - Updated: 11/26/2023 - Published: 11/26/2019 - Barry A./The Flash, Cisco R., Kara D./Supergirl
Heroes Thanksgiving Day Gathering by changingdestiny40
The multiverse heroes and their loved ones and allies once more come together. This time to celebrate Thanksgiving Day. Part 6 of [Multiversal Holiday Gatherings: 2022-2023]
Crossover - Flash & Avengers - Rated: K - English - Friendship/Family - Chapters: 1 - Words: 1,680 - Favs: 3 - Follows: 1 - Published: 11/24/2023 - Complete
Riding the Lightning! by Elyred3516 reviews
(NOT FOR WEST-ALLEN FANS) A series of our very own Scarlet Speedster going on a sexual hazardous rampage with countless woman across the multiverse (Barry multi)
Crossover - Flash & Supergirl - Rated: M - English - Romance/Humor - Chapters: 12 - Words: 81,572 - Reviews: 50 - Favs: 80 - Follows: 79 - Updated: 11/24/2023 - Published: 1/28/2022 - [Barry A./The Flash, Kara D./Supergirl, Lena L.]
A Story of A Multiverse: Torn From My World by GrimesAllen08 reviews
Takes place after The Flash 2x23. In one reality, Barry created Flashpoint after the death of his father. In another, things took a drastic turn. Barry finds himself trapped in a completely different earth, ripped away from his loved ones and thrown into a constant battle for survival in a zombie apocalypse. Making friends and foes, old and new, can he survive? Or will he fail?
Crossover - Flash & Avengers - Rated: M - English - Sci-Fi/Angst - Chapters: 25 - Words: 81,464 - Reviews: 41 - Favs: 16 - Follows: 18 - Updated: 11/21/2023 - Published: 4/8/2023 - Barry A./The Flash, Black Widow/Natasha R., Captain America/Steve R., Iron Man/Tony S. - Complete
A Torn World by GrimesAllen08 reviews
Sequel to Torn from My World. Barry and the Avengers adjust to their new home with the X-Men. However, their peace is short-lived when an old ally returns, warning of a fateful foe by the name of Thanos. Desperate to protect the Earth and so much more, Barry, the X-men, and the Avengers are dragged back into war with new foes and allies. A war not everyone is going to survive.
Crossover - Flash & Avengers - Rated: M - English - Sci-Fi/Angst - Chapters: 1 - Words: 4,743 - Reviews: 1 - Favs: 3 - Follows: 4 - Published: 11/21/2023 - Barry A./The Flash, Captain America/Steve R., Thanos, Wanda M./Scarlet Witch
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