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Ninja of Earth 1 and a half by DigitallyAdmiringHumanity reviews
This is one of the portals from Naruto's Tale that opens in the Arrowverse, one of the two
Crossover - Flash & Naruto - Rated: M - English - Family/Adventure - Chapters: 3 - Words: 7,886 - Reviews: 58 - Favs: 348 - Follows: 353 - Updated: 8/27 - Published: 5/13/2021 - [Sakura H., Naruto U.] [Barry A./The Flash, Killer Frost] - Complete
The Allen Twins by Alter Alyce reviews
Sebastian and Barry Allen are the twin sons of Henry and Nora Allen. After the incident, they were separated. Barry going the the Wests while Sebastian went to his godfather Alex Smythe. This is the story of what happened to the two young boys separated by a tragedy.
Crossover - Flash & Glee - Rated: T - English - Humor/Family - Chapters: 34 - Words: 84,722 - Reviews: 142 - Favs: 402 - Follows: 371 - Updated: 8/25 - Published: 6/18/2015 - Barry A./The Flash, Sebastian S. - Complete
Elem 4-Speedster's Trials by LORD NAVIGATOR reviews
Father and mother killed by a man in yellow with red lightning. At seven wonders around the village and gets caught by a storm, rushing home he finds a place where a window was open. About to enter, he is hit by a lightning bolt and falls into a chemical container, but quickly comes out by swimming back up. Develops powers and gets a team to stop crime in the world.
Crossover - Flash & Naruto - Rated: T - English - Family - Chapters: 7 - Words: 21,663 - Reviews: 8 - Favs: 43 - Follows: 45 - Updated: 8/20 - Published: 6/22/2018 - Eobard T./Impostor Harrison W./Reverse-Flash, Naruto U., Samui, C
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: 11 - Words: 11,865 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 8/17 - Published: 8/18/2022 - Barry A./The Flash
Total War: The Flash by Dark Days Dexter reviews
Part 1 of the Total War series. Barry Allen's life as the Flash has only been underway to his third year and has been more difficult with the effects of Flashpoint. However, Barry must put away his personal issues as a multiverse war finds its way to Earth 1, forcing him to jump into action with a sea of foes and allies both new and alike.
Crossover - Flash & Arrow - Rated: M - English - Sci-Fi/Angst - Chapters: 10 - Words: 43,884 - Reviews: 29 - Favs: 12 - Follows: 11 - Updated: 8/14 - Published: 3/30 - Barry A./The Flash, Cisco R., Oliver Q./The Arrow, John D./Spartan
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: 6 - Words: 35,267 - Favs: 1 - Follows: 3 - Updated: 8/1 - Published: 1/9/2023
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: 40 - Words: 656,065 - Reviews: 541 - Favs: 96 - Follows: 77 - Updated: 7/26 - Published: 8/27/2023 - Barry A./The Flash, Cisco R., Captain America/Steve R., Thor - Complete
speedster's reckoning the flash vs the seven by theflashladbabyfanfictonwriter reviews
when the Flash ends up in the world of the boys' TV show after chasing the reverse Flash he must team up with a vigilante group called the boys to take down the corrupt heroes of this world he questions the boys' violent methods they rescue the gen v kids to help against the corrupt heroes spoilers for the boys season 4 if you haven't seen it YOU HAVE BEEN WARNED
Crossover - Flash & Boys - Rated: M - English - Sci-Fi/Suspense - Chapters: 1 - Words: 842 - Reviews: 5 - Favs: 6 - Follows: 6 - Published: 7/16 - Barry A./The Flash, Annie J./Starlight, Homelander/John, Hughie Campbell
SuperEarth: Reign by Captain Sigma- Karry Co-Master reviews
With Nxylgsptinz stuck on SuperEarth, she needs a Kryptonian to break her free: Reign. Meanwhile, Kara and Barry navigate their newfound parenthood alongside family and hero duties.
Crossover - Flash & Supergirl - Rated: K - English - Romance/Supernatural - Chapters: 8 - Words: 52,508 - Reviews: 18 - Favs: 7 - Follows: 6 - Updated: 7/13 - Published: 4/20 - Barry A./The Flash, Alex D., Samantha A./Reign, Kara D./Supergirl
Derailed Detour by No Fate 1990 reviews
In this story, Kara rekindles a romance with a former boyfriend named Marcellus. Marcellus is from her home planet. They deal with a difficult pregnancy. Kara is torn between her destiny and fate.
Crossover - Supergirl & Flash - Rated: K+ - English - Family/Angst - Chapters: 98 - Words: 8,009 - Reviews: 6 - Favs: 5 - Follows: 2 - Updated: 7/10 - Published: 11/22/2016 - Barry A./The Flash, Kara D./Supergirl, Alex D., Hank H./Cyborg Superman - Complete
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: 4 - Words: 9,665 - Reviews: 15 - Favs: 31 - Follows: 30 - Updated: 7/9 - Published: 9/10/2023 - Barry A./The Flash, Klaus M., Elijah M., Rebekah M.
Birth of the Canary by The-White-Queen-101
Sara Lance's life was flipped upside down after her sister, Laurel, drowned during a boating accident in two-thousand and seven. She and her family never thought they'd move on from their loss, and Sara thought her grief and guilt would suffocate her. Life had a funny way of changing the tides. *Life in Starling City after Laurel's "passing"* SAME UNIVERSE AS WAILING CRESCENDO
Crossover - Flash & Arrow - Rated: T - English - Drama/Adventure - Chapters: 1 - Words: 3,300 - Favs: 3 - Follows: 3 - Published: 7/1 - [Sara L., Oliver Q./Arrow/Green Arrow] [Tommy M., Dr. Caitlin S.]
UnDeserted by Ladyawesome45321 reviews
Central City explodes and plunges the residents into craziness. Deserey finds herself with abilities and skills she had thought she lost years ago as a direct result of the explosion. There's a group, a team, operating out of the old S.T.A. R. Labs building. The building that has been shut down and declared hazardous. The people who are responsible, and they want her help.
Crossover - Flash & Batman - Rated: M - English - Crime/Mystery - Chapters: 3 - Words: 22,742 - Reviews: 1 - Favs: 2 - Follows: 2 - Updated: 6/25 - Published: 3/18 - Barry A./The Flash, Bruce W./Batman, OC, Jason T./Red Hood
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: 8 - Words: 94,421 - Reviews: 152 - Favs: 497 - Follows: 555 - Updated: 6/3 - Published: 10/9/2023 - Naruto U., Mikoto U.
Bounty by CharmedMilliE- Karry Master reviews
On a world where the multiverse is well known criminals try to escape to another world to get away. Kara, Barry, and Rae (Barry's cousin) go after them to bring them back. Part of the Millma Verse
Crossover - Flash & Supergirl - Rated: T - English - Family/Adventure - Chapters: 20 - Words: 91,076 - Reviews: 111 - Favs: 36 - Follows: 25 - Updated: 6/2 - Published: 10/13/2020 - Barry A./The Flash, OC, Kara D./Supergirl
New Justice Paragons of the Multiverse by CharmedMilliE- Karry Master reviews
When someone changes Rae's past it puts the entire multiverse into danger that the paragons need to fix. Special 7th anniversary update.
Crossover - Flash & Supergirl - Rated: T - English - Chapters: 1 - Words: 6,258 - Reviews: 3 - Favs: 7 - Follows: 3 - Published: 5/19 - Barry A./The Flash, OC, Kara D./Supergirl, Clark K./Superman
Star Wars: Balance by G4dgetJunior reviews
(Crossover AU) In an alternate universe, Anakin Skywalker was born female, and a man named Barry Allen is vader. What else is different? And what does this mean for the SW Timeline? Come find out in: Star Wars Balance.
Crossover - Star Wars & Flash - Rated: T - English - Sci-Fi/Fantasy - Chapters: 3 - Words: 5,557 - Reviews: 5 - Favs: 4 - Follows: 5 - Updated: 5/13 - Published: 5/12/2023 - Anakin Skywalker, Barry A./The Flash, E. Palpatine, Gideon
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: 77 - Favs: 76 - Follows: 86 - Updated: 5/11 - Published: 10/24/2021 - Barry A./The Flash, Oliver Q./The Arrow, Captain America/Steve R., Iron Man/Tony S.
The Amazing SnowSpider by Nightwing Josh
Spin off of "Four Peters Vs. The Sinister Six." It's been a few months since Peter-3 went to Earth-199999. He meets and befriends a doppelgänger of Caitlin Snow from another universe. Together, they must deal with Harry Osborn, seeking revenge and avoid being successfully hunted by Kraven.
Crossover - Spider-Man & Flash - Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 1,888 - Favs: 1 - Follows: 3 - Published: 4/25 - [Peter P./Spider-Man, Dr. Caitlin S.] Harry O., Kraven
We Made It by Nightwing Josh
Based on What If Universe's "The Flash and Spider-Man: Book 2 of the Spider-verse." It's been 10 years for Team SpiderFlash, so they celebrate surviving and mourning friends.
Crossover - Spider-Man & Flash - Rated: T - English - Friendship/Hurt/Comfort - Chapters: 1 - Words: 2,633 - Favs: 2 - Follows: 2 - Published: 4/25 - [Barry A./The Flash, Patty S.] [Peter P./Spider-Man, Dr. Caitlin S.]
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 & X-overs - Rated: T - English - Sci-Fi - Chapters: 2 - Words: 6,290 - Reviews: 10 - Favs: 12 - Follows: 10 - Updated: 4/24 - Published: 1/10 - Jay G./The Flash, Patty S.
The flash earth 99 by Marty Gannon Coolman
The universe is the arrowverse and Smallville together Lucifer, season two and arrow the flash, Supergirl and Smallville
Crossover - Flash & Arrow - Rated: M - English - Sci-Fi - Chapters: 3 - Words: 3,198 - Updated: 4/9 - Published: 11/7/2023 - Barry A./The Flash, Dr. Caitlin S., Jay G./The Flash, Oliver Q./The Arrow
The Fastest Man alive broken by America’s greatest Heroinez by Arrowverselover234 reviews
Joanna, Female Homelander, has always loved A-Train she sees him as a little puppy she can use on the side. She thinks he has a certain charm to him. Unfortunately for her though, he realised how much of a psycho she is, it doesn’t matter to her though. If she can’t have him through love then she’ll have him through Fear. Though, Reginald, A-Train, is done with all this.
Crossover - Boys & Flash - Rated: M - English - Hurt/Comfort/Angst - Chapters: 1 - Words: 1,020 - Reviews: 2 - Favs: 5 - Follows: 3 - Published: 4/7 - A-Train, Homelander/John, Hunter Z./Zoom, Hughie Campbell
Special Announcement From Myself by changingdestiny40
What the title says. And delivered to all of you from Xena and Gabriella on my behalf. It's also an important message which has to do with my future fic postings.
Crossover - Xena: Warrior Princess & Flash - Rated: K - English - Chapters: 1 - Words: 514 - Published: 4/2 - Gabrielle, Xena - Complete
A lovemaking patrol to remember by Bl4ckHunter reviews
One-shot story. Crack fic. A regular patrol with the Flash and Supergirl turns much rougher than usual, much to Team Flash's and Super-Friends' dismay.
Crossover - Flash & Supergirl - Rated: T - English - Romance/Humor - Chapters: 1 - Words: 1,157 - Reviews: 6 - Favs: 14 - Follows: 11 - Published: 3/31 - [Barry A./The Flash, Kara D./Supergirl] - Complete
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