Stargate: SG-1 and Harry Potter Crossovers
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Harry Potter's new headmaster by Don1st reviews
Set during the Triwizard tournament, everything is going according to Voldemorts plan until Harry's name is called when the headmaster of an otherwise unknown school by the name of the Alteran school for Magic by default. This alters the course of Harry's schooling and quite possibly the rest of his life. I have no proprietary claim to Harry Potter or SG-1
Rated: T - English - Fantasy/Supernatural - Chapters: 13 - Words: 24,400 - Reviews: 77 - Favs: 152 - Follows: 228 - Updated: 7/17 - Published: 11/29/2019
Lily's Coffee and Pastries by knifetoagunfight reviews
Daniel Jackson knew about many things. Parasitic aliens, technology so advanced is was like magic. But actual magic being capable by humans never crossed his mind. In a way, magic wasn't real. Magic users just function higher, like the Ancients did on the way to Ascension. But the only ones who knew that were the Man Who Conquered and his bonded, Draco Malfoy. SLASH not HP/DM
Rated: T - English - Sci-Fi/Romance - Chapters: 19 - Words: 40,189 - Reviews: 63 - Favs: 364 - Follows: 582 - Updated: 7/17 - Published: 8/16/2014 - D. Jackson, Harry P., Draco M.
A Godly bounty by ValteriaBiggles reviews
Events between Voldemort and Dumbledore played out differently in the ministry as Harry intervenes in an attempt to help. A brave act that has far-reaching consequences. Now linked to a family living under Goa'uld Tyranny Harry must find out how to help them if he even can.
Rated: T - English - Sci-Fi/Fantasy - Chapters: 1 - Words: 1,642 - Reviews: 7 - Favs: 35 - Follows: 64 - Published: 7/13 - OC, Harry P.
Obnova Alteránské rasy by DroidsBoys reviews
Harry je plnohodnotný Alteran, dokáže obnovit slávu jeho rasy.
Rated: T - Czech - Sci-Fi - Chapters: 2 - Words: 2,306 - Reviews: 3 - Favs: 5 - Follows: 9 - Updated: 6/25 - Published: 6/2 - [Harry P., Daphne G.]
A New Tournament by killgore444 reviews
A gift from the future provides a little bit of hope in a time of need. OP Harry, Ron and Hermione, but with a plausible background to support it. No bashing, even of disliked characters.
Rated: T - English - Chapters: 5 - Words: 31,457 - Reviews: 63 - Favs: 163 - Follows: 278 - Updated: 6/21 - Published: 4/12
Harry Potter and The Chance at a New Life by kossboss reviews
A small change in Harry's battle with the Basilisk had him slowly absorbing Voldemort's memories from the Horcrux in his scar. Follow Harry as he makes preparations to leave the Wizarding world behind for good and embark on a long and exciting journey into the unknown. Little does Harry expect to be launched into a world of false gods and spaceships. Smart/Powerful/Grey Harry.
Rated: T - English - Adventure/Sci-Fi - Chapters: 17 - Words: 234,483 - Reviews: 2240 - Favs: 4,729 - Follows: 5,967 - Updated: 6/17 - Published: 1/7/2018 - S. Carter, D. Jackson, J. O'Neill, Harry P.
Harry Potter: Last of the Ancients - Book 2 by Karmic Acumen reviews
Harry Potter travels the multiverse in order to acquire new technology and allies, in preparation for dealing with the enemies of his ancestors once and for all. Or at least that was the original plan.
Rated: K+ - English - Sci-Fi/Adventure - Chapters: 3 - Words: 27,760 - Reviews: 80 - Favs: 630 - Follows: 811 - Updated: 2/18 - Published: 11/2/2014 - Harry P.
Return of the Alterans by SSG-Goku3397 reviews
At the tender age of five, Harry has a bout of incredible accidental magic drawing the attention of the Ascended Alterans. Though the Ascended don't intervene, they decide to bend the rule by allowing Janus and Ganos Lal to raise Harry until the age of nine before sending him and his guardians to the Tartarus City Ship to continue his life and try to bring back the Alterans!
Rated: T - English - Sci-Fi/Fantasy - Chapters: 9 - Words: 65,823 - Reviews: 343 - Favs: 1,314 - Follows: 1,739 - Updated: 12/31/2019 - Published: 5/26/2019 - [Harry P., OC]
Jimmy Evans by TheNewJeniferChurch reviews
Harry runs away to America and eventually joins the Air Force under an assumed name. He ends up on SG-20, and is captured by Herur. His host is damaged, so he tries to take Harry as a replacement. Big mistake. Chapter 3 is up.
Rated: T - English - Adventure/Drama - Chapters: 4 - Words: 15,255 - Reviews: 177 - Favs: 958 - Follows: 1,673 - Updated: 12/15/2019 - Published: 1/24/2019 - S. Carter, D. Jackson, J. O'Neill, Harry P.
Harry Potter's most excellent adventure by wolfd890 reviews
Harry Potter simply wanted to take a break from being everyone's hero. Who'd have thought that being kidnapped by Jaffa out of some lousy Diner would do the trick? Poor SG1. They have no idea how far down the rabbit hole goes. Harry Potter/Stargate Crossover, eventual AU (COMPLETE, if you can believe it!)
Rated: T - English - Humor/Adventure - Chapters: 21 - Words: 143,446 - Reviews: 982 - Favs: 3,107 - Follows: 3,678 - Updated: 11/28/2019 - Published: 11/16/2015 - J. O'Neill, Vala, Harry P. - Complete
To see the stars by Architect96 reviews
Harry Potter has finally enough. With Hermione killed in his second year, Sirius executed during his third year and terminate disease slowly killing him he wants a way out. Fulfilling his dream of going to space he changes the fate of Earth. One-shot.
Rated: T - English - Hurt/Comfort/Sci-Fi - Chapters: 1 - Words: 3,200 - Reviews: 13 - Favs: 130 - Follows: 70 - Published: 5/29/2019 - Complete
Imperialized Atlantis by Dragons123d reviews
(Joke Fic) Harry Potter, Master of Death, has always wanted to pit the Imperial Navy and Army against the rest of the universe, but now that he is back in the good old SG1 universe, now is the best time to start his plans for this, by using Lantean technology! (Harem pairing, Silliness and Star Wars goodness! You have been warned!)
Rated: T - English - Humor/Sci-Fi - Chapters: 4 - Words: 4,647 - Reviews: 37 - Favs: 174 - Follows: 221 - Updated: 3/22/2019 - Published: 2/19/2019 - [Harry P., OC, S. Carter, Mrs. Granger]
Walking Through by AnguishOC reviews
Harry Potter – Now Unspeakable has chosen to study the Veil, not for its mysteries but for its isolation and proximity to the Ministry. In his free time, he has kept himself busy with any whim and desire. Now nearly three years since Voldemort's defeat and Harry is ready to move on to the next great adventure. Interestingly, the Veil has whispered something about a Stargate.
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 6,893 - Reviews: 51 - Favs: 392 - Follows: 706 - Published: 2/10/2019 - S. Carter, D. Jackson, J. O'Neill, Harry P.
Avalon, Secret of the Stars by donniedarko81 reviews
A hidden history revealed and the dawning of a new era or the end of another. There is some bashing in this story. You don't like it don't bother reading.
Rated: T - English - Sci-Fi/Adventure - Chapters: 43 - Words: 231,494 - Reviews: 1057 - Favs: 1,842 - Follows: 2,357 - Updated: 1/24/2019 - Published: 4/27/2016 - [Harry P., Hermione G.]
To Conquer by WolftheForsaken reviews
Nuking Ra's spaceship as it was about to enter hyperspace was a bad idea, as young Harry Potter is about to find out. Competent Harry, Competent Dumbledore, Political intrigue, magic in space, Sort of Dark Lord Potter but there's no such thing as Dark Magic. Harry out to conquer the magical word for it's own good, then space, just because he can.
Rated: T - English - Sci-Fi/Adventure - Chapters: 9 - Words: 31,018 - Reviews: 534 - Favs: 1,653 - Follows: 2,254 - Updated: 11/26/2018 - Published: 2/25/2017 - Ra, Harry P.
Harry Potter: Humanity's Last Hope by Emperor Vanquest reviews
Harry, after discovering Atlantis, accidentally activates Janus' Dimensional Transport & Time Dilation device while en route from Lantea to Earth and triggered both a dimensional shift and a time jump, which rendered him unconscious. He awakens in a star system not too distant from Earth, and finds Atlantis has carried out his last order.
Rated: T - English - Drama/Sci-Fi - Chapters: 5 - Words: 64,511 - Reviews: 213 - Favs: 943 - Follows: 938 - Updated: 11/4/2018 - Published: 9/3/2014 - S. Carter, Gen. Hammond, J. O'Neill, Harry P. - Complete
Voice In My Head by JustAnotherObsessedFangirl reviews
When the twins locked Percy in a tomb while in Egypt Percy found a Jar with a Tok'ra inside.
Rated: K - English - Chapters: 8 - Words: 9,379 - Reviews: 48 - Favs: 125 - Follows: 210 - Updated: 10/4/2018 - Published: 9/17/2018 - Percy W.
Snake by SociallyAwkwardWeirdo25 reviews
When Percy was 6 a Goa'uld took over his body, then on the day of the Battle of Hogwarts he meets Oliver Woods uncle Carson who is familiar with the Goa'uld and gets the snake out of his head, Just in time to fight with his family.
Rated: K - English - Chapters: 1 - Words: 7,713 - Reviews: 1 - Favs: 29 - Follows: 13 - Published: 9/21/2018 - Percy W. - Complete
Harry Potter and the Magical Tok'ra by HufflepuffBadger1978 reviews
Summary: Harry Potter narrowly manages to escape his wicked uncle by magically teleporting himself to another world. Harry becomes host to a Tok'ra symbiote named Einar.
Rated: T - English - Adventure/Friendship - Chapters: 4 - Words: 16,266 - Reviews: 285 - Favs: 1,139 - Follows: 1,778 - Updated: 9/13/2018 - Published: 11/10/2016 - S. Carter, Harry P., Hermione G., N. Tonks
Electus Unum by RebelDroideka reviews
When Nathan Potter's twin brother was entered into the Tri-Wizard Tournament, things quickly spiraled out of control. Now, Voldemort's reign of terror can only be ended by one man; but they have to convince him that they are worth saving first... (Harry swears like a drunken sailor occasionally, hence rating)
Rated: T - English - Chapters: 11 - Words: 15,653 - Reviews: 126 - Favs: 812 - Follows: 1,219 - Updated: 9/13/2018 - Published: 6/23/2016 - Harry P.
Quelques news et délai de publication by Ptitepointe2
Houlà... En retard, en retard, je suis en retard en retard... Je vous présente mes excuses et je vous explique pourquoi ici...
Rated: K - French - Chapters: 1 - Words: 156 - Published: 8/22/2018 - Complete
Emergence by Shieldage reviews
It's 1981 and Fidelius charms are useless if the Secret Keeper's just going to go ahead and blab what he's hiding while in range of sufficiently advanced tech
Rated: T - English - Sci-Fi/Humor - Chapters: 1 - Words: 5,636 - Reviews: 8 - Favs: 72 - Follows: 101 - Published: 8/19/2018 - Loki, Harry P., Gilderoy L.
el heredero del manto by emperador alterran reviews
hace millones de años existió una gran alianza de 4 grandes razas, que juntas se impusieron a la adversidad, hasta que la alianza se vio fragmentada por la tragedia, ahora miles de años después un descendiente de una de las 4 razas busca restablecer a su pueblo, y la antigua alianza de nuevo a la gloria, y también traer orden nuestro pequeño rincón del universo. HE VUELTO!
Rated: T - Spanish - Adventure/Sci-Fi - Chapters: 11 - Words: 28,857 - Reviews: 19 - Favs: 54 - Follows: 45 - Updated: 7/22/2018 - Published: 4/28/2015 - Thor, Harry P.
The Thorny Twisted Road Never Travelled by Morena Evensong reviews
The Ark revealed the truth to the Priors, but not all of them were interested in merely serving the Ori. Some only wanted power. Four years after the end of the Second Blood War, Death Eaters are still a threat. However, as Kingsley begins to discover, there is an even greater threat to the Wizarding World, kept secret as the world's biggest conspiracy - not counting the aliens.
Rated: T - English - Sci-Fi/Drama - Chapters: 10 - Words: 70,523 - Reviews: 107 - Favs: 182 - Follows: 276 - Updated: 7/18/2018 - Published: 10/13/2016
The Perfect Host by Otspock reviews
HPSG1 Crossover When going to blow up a Gua'uld ship, SG1 finds an extroadinary boy with remarkable talents being kept prisinor
Rated: K+ - English - Chapters: 4 - Words: 2,037 - Reviews: 82 - Favs: 274 - Follows: 535 - Updated: 6/30/2018 - Published: 9/8/2007 - J. O'Neill, Harry P.
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