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Heroes coming together by Aragorn II Elessar reviews
The Singularity at the end of Flash Season 1 has graver consequences than anyone foresaw. Now, it is up to Heroes from various worlds to come together and defeat the forces of evil that have risen in the Singularity's wake. LOTR/MCU/Star Wars/Buffyverse/Smallville/Supernatural/Arrowverse crossover. Part 1 of 'When Legends meet'.
Crossover - Flash & Avengers - Rated: M - English - Adventure/Friendship - Chapters: 29 - Words: 424,308 - Reviews: 368 - Favs: 68 - Follows: 59 - Updated: 22h - Published: 8/27/2023 - Barry A./The Flash, Cisco R., Captain America/Steve R., Thor
Elemental Crisis Book I: Through Fire And Flames by Dragon of Mystery
Book I of the Elemental Crisis. When the Dark Master returns with forces from beyond this world, Spyro and Cynder must turn to heroes from beyond their world, the forces the Arrowverse, to stop their old foe. But this time, the power of the Elements has been taken from them in a Crisis across two worlds. But will they be enough? Rated T for safety. I own nothing. Enjoy the show!
Crossover - Flash & Spyro the Dragon - Rated: T - English - Adventure/Sci-Fi - Chapters: 13 - Words: 12,921 - Follows: 1 - Updated: 22h - Published: 12/29/2023 - Barry A./The Flash, Spyro, Cynder
Watching: The Crimson Speedster by hunter41963801 reviews
Join the CW-Verse as they take a glimpse into the life of one Naruto Uzumaki Namikaze AKA Impulse... and his many, many, adventures.
Crossover - Flash & Naruto - Rated: M - English - Adventure - Chapters: 2 - Words: 12,547 - Reviews: 16 - Favs: 84 - Follows: 101 - Updated: 3/14 - Published: 3/10 - Barry A./The Flash, Oliver Q./The Arrow, Linda P., Naruto U.
The Blur by The Sorcerer King Ainz reviews
Witness what happens when barry loses his world to zoom, with his team remembering how much barry talked about a certain blonde they them bring him to this new earth... What will happen? How will this change things? Welcome to my very own SuperFlash fanfic! or Karry idk I just wished Barry and Kara Were a thing instead of iris... ;3
Crossover - Flash & Supergirl - Rated: K - English - Romance - Chapters: 1 - Words: 2,299 - Reviews: 1 - Favs: 5 - Follows: 6 - Published: 3/11 - Barry A./The Flash, Cisco R., Kara D./Supergirl, Alex D.
Speedyflash - Intro by Flanary74 reviews
During his first visit to Starling City, Barry develops feelings for Thea (instead of Felicity)
Crossover - Flash & Arrow - Rated: T - English - Romance - Chapters: 2 - Words: 984 - Reviews: 3 - Favs: 3 - Follows: 3 - Updated: 3/10 - Published: 2/3 - [Barry A./The Flash, Thea Q.]
The Crimson Knight by BuggyTrauma
Feeling lost and hurt after getting someone killed, Barry pays a visit to Gotham City to see his friend Bruce Wayne. When he arrives, someone else is waiting for him Quick rewrite of The Flash pilot episode with Batman instead of Green Arrow, inspired by an edit on youtube. The Flash meets The Dark Knight by Meme feeder
Crossover - Batman & Flash - Rated: K - English - Sci-Fi - Chapters: 1 - Words: 841 - Published: 3/10 - Complete
Avenging Flash: Age Of Ultron (Book Two) by G4dgetJunior reviews
In Book Two of this series, Barry Allen and the Avengers must face off against the next major foe to threaten the earth. A corrupted and homicidal AI, hell bent on humanities extinction. It's name? Ultron.
Crossover - Flash & Avengers - Rated: T - English - Sci-Fi/Adventure - Chapters: 6 - Words: 13,401 - Reviews: 5 - Favs: 7 - Follows: 7 - Updated: 3/10 - Published: 2/16 - Barry A./The Flash, Pietro M./Quicksilver, Ultron, Wanda M./Scarlet Witch
Karry Universe by CharmedMilliE- Karry Master reviews
In an alternate universe both Barry and Kara exist together. This is what happens when they meet in college and fall in love. Follow them, their family, and friends through life from college years to being superheroes and beyond. This is Karry Universe. Leading the Millma Verse.
Crossover - Flash & Supergirl - Rated: T - English - Romance - Chapters: 207 - Words: 1,174,403 - Reviews: 3494 - Favs: 1,673 - Follows: 1,453 - Updated: 3/10 - Published: 3/4/2016 - [Barry A./The Flash, Kara D./Supergirl]
Four Peters Vs The Sinister Six by Nightwing Josh reviews
Based on What If Universe's "Flash and Spider-Man: Book 2 of the Spiderverse." In a multiverse where Spider-Man is partners with The Flash and the boyfriend of Caitlin Snow/Frost, the Doctor Strange of Earth-199999 accidentally brought Peter and Frost to his universe, along with other foes of the Web Head from other universes and his doppelgängers.
Crossover - Flash & Spider-Man: No Way Home - Rated: T - English - Drama/Adventure - Chapters: 16 - Words: 39,819 - Reviews: 3 - Favs: 10 - Follows: 12 - Updated: 3/6 - Published: 12/11/2023 - Dr. Caitlin S., Killer Frost, Peter Parker/Spider-Man
Future Foundation 2 : Family Matters by What If Universe reviews
It's been 2 years since the singularity and things are going well for Peter and his team. Everyone is happy and content but little did Peter know that it was only the beginning of something much larger. Peter and his team will now have to defend the world and even the universe from threats even more powerful than before because if they fail everything they love will be destroyed.
Crossover - Flash & Fantastic Four - Rated: T - English - Sci-Fi/Suspense - Chapters: 1 - Words: 12,398 - Reviews: 1 - Favs: 6 - Follows: 5 - Published: 3/5 - [Spider-Man/Peter P., Invisible Woman/Susan S.] Jay G./The Flash, Dr. Doom/Victor V.
An Arsenal Of Pleasure by changingdestiny40 reviews
An AU in which Roy gets it on with multiple ladies across the Arrowverse while they're more than willing to receive as much as he's more than willing to give. And Thea's perfectly alright with it. (Roy Harper/Harem) Part 46 of [Elseworlds Chronicles II]
Crossover - Flash & Arrow - Rated: M - English - Chapters: 5 - Words: 12,285 - Reviews: 2 - Favs: 25 - Follows: 25 - Updated: 3/5 - Published: 1/23/2021 - [Roy H./Arsenal, Thea Q., Black Canary/Earth-1 D. Laurel Lance, Dr. Caitlin S.]
Shinobi of Earth 1 and a half by DigitallyAdmiringHumanity reviews
This is where one of the portals from my Shinobi of the Multiverse opens, one of the two
Crossover - Flash & Naruto - Rated: M - English - Family/Adventure - Chapters: 3 - Words: 18,947 - Reviews: 57 - Favs: 360 - Follows: 361 - Updated: 3/4 - Published: 5/13/2021 - [Sakura H., Naruto U.] [Barry A./The Flash, Killer Frost]
The Crimson Speedster by choejhulkp9 reviews
Barry Allen AKA the Flash wasn't the only one who was affected by the particle accelerator. He and Star Labs find another speedster who has similar powers to Barry, yet he's a bit different. Watch as the Scarlet Speedster joins the Crimson Speedster possibly join forces and protect Central City. Naruto x Linda x ?
Crossover - Flash & Naruto - Rated: M - English - Chapters: 19 - Words: 592,391 - Reviews: 799 - Favs: 2,027 - Follows: 2,051 - Updated: 3/4 - Published: 12/18/2015 - Linda P., Naruto U.
Naruto the Godspeed by PlayBoyMad
Naruto is flash partner
Crossover - Naruto & Flash - Rated: T - English - Romance/Adventure - Chapters: 1 - Words: 2,228 - Favs: 2 - Follows: 2 - Published: 3/3 - Complete
balance and justice by Rebel Willows reviews
Snowbarry au. Barry and Caitlin come from two different life but when they meet something happens that changes their lives forever. read how they balance everything and find justice for what happened in the past. will their justice-seeking have a cost? pairings: snowbarry, lauriver, nyssara,
Crossover - Flash & Arrow - Rated: M - English - Romance/Drama - Chapters: 19 - Words: 25,536 - Reviews: 11 - Favs: 15 - Follows: 18 - Updated: 2/29 - Published: 4/23/2018 - Barry A./The Flash, Dr. Caitlin S., Oliver Q./Arrow/Green Arrow, Black Canary/Earth-1 D. Laurel Lance
Lost and found by Bl4ckHunter reviews
One-shot story. While mourning his father, Barry is visited by Ninth Doctor, who gives him a sound advice.
Crossover - Doctor Who & Flash - Rated: T - English - Hurt/Comfort - Chapters: 1 - Words: 1,354 - Reviews: 6 - Favs: 7 - Follows: 4 - Published: 2/24 - Complete
Scarlet Spider & Speedster 3 : Flashpoint Paradox by What If Universe reviews
Barry Allen did it. He saved his mother and ruptured all of time and space. Now the ripple effect has taken place and ripples of distortion radiated from that point of impact, shifting everything just slightly, but enough to make a gigantic impact on the timeline. Friends have become enemies, enemies will never come to pass, and let's just say the universe will never be the same.
Crossover - Spider-Man & Flash - Rated: K+ - English - Family/Angst - Chapters: 7 - Words: 46,159 - Reviews: 10 - Favs: 26 - Follows: 25 - Updated: 2/23 - Published: 9/2/2023 - [Peter P./Spider-Man, Mary Jane W.] [Dr. Caitlin S., Barry A./The Flash]
Heroes Second Christmas & New Years Gatherings by changingdestiny40
Due to Earth Prime's Santa Claus aka Scott Calvin having come down with a cold, the heroes across the multiverse along with their families and allies gather together once more for the holidays. This time however to deliver the gifts around the world in his stead. Seventh & final part of [Multiversal Holiday Gatherings: 2022-2023]
Crossover - Flash & Avengers - Rated: K - English - Friendship/Family - Chapters: 2 - Words: 3,679 - Favs: 1 - Follows: 1 - Updated: 2/23 - Published: 2/20
Flash X Blue Beetle: The Son Of Thawne by Gold3nWrld reviews
Eobard Thawne in his attempt to jump back to the future after killing Barry's mom fails and leaves him stranded a year before Barry is born, he later he goes on to have a son of his own named Naruto Mugen Wells after stealing the identity of Harrison Wells, after finding a damaged piece of Alien tech when he was 11 Naruto follows in his fathers footsteps, will he give in to evil?
Crossover - Flash & Naruto - Rated: T - English - Chapters: 1 - Words: 10,736 - Reviews: 6 - Favs: 41 - Follows: 54 - Published: 2/21 - Dr. Caitlin S., Eobard T./Impostor Harrison W./Reverse-Flash, Grodd, Naruto U.
Champions of universes by Bl4ckHunter reviews
When Peter and Strange mess up the spell to make everyone forget Spider-Man's identity, it shatters the barriers between the multiverse, with multiple people from various universes pulled into theirs, with their own enemies and problems to deal with and it's up to Peter, Strange and their new allies to save the multiverse.
Crossover - Flash & Spider-Man: No Way Home - Rated: T - English - Adventure/Sci-Fi - Chapters: 11 - Words: 69,085 - Reviews: 63 - Favs: 23 - Follows: 22 - Updated: 2/21 - Published: 2/7 - Complete
When Lightning Meets Snow by Crazytoaster24
Set in an Alternate version of season three where Barry and Caitlin get together. Team Flash And Arrow must team up yet again in order to stop a new and mysterious threat from destroying Central City. Barry Allen X Caitlin Snow
Crossover - Flash & Arrow - Rated: M - English - Romance/Mystery - Chapters: 5 - Words: 6,854 - Favs: 2 - Follows: 1 - Updated: 2/19 - Published: 1/30 - Barry A./The Flash, Dr. Caitlin S.
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: 90 - Favs: 369 - Follows: 420 - 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: 31 - Follows: 42 - 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: 65 - Follows: 80 - Updated: 2/10 - Published: 10/24/2021 - Barry A./The Flash, Oliver Q./The Arrow, Captain America/Steve R., Iron Man/Tony S.
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