Basically title says it all. Rated T because I don't know what might happen and references to swear words. Unfortunately, I'm not the BBC or J.K Rowling, so I don't own either. Read and review please!

Post OotP, Harry decides to leave his relatives to ready himself for Voldemort, something Dumbledore seems unwilling to do. He meets a Brigadier and quickly finds Earth is not alone.

Luna is in her sixth year of Hogwarts, and the Death Eaters have taken over Hogwarts. Voldemort is back and the Golden Trio are after him. All Luna wants is an escape from Hogwarts, and she finds it with a man in a suit with a blue box.

When The Doctor and Donna mysteriously crash to Diagon Alley, he suspects someone else is behind their accidental arrival...but who?

In a galaxy far away, The Face of Boe tells The Doctor his final secret. "You are not alone" What if there was another survivor out there besides The Master who attended a very special school?

The Doctor finds himself alone again, now that all his companions have left. But some unknown force has pulled the TARDIS into a parallel world where, supposedly, magic exists. But magic is impossible...isn't it?

Professor Snape's Potions class is interrupted by a bizarre man in a blue police box; a man who travels throughout time saving worlds. His appearance triggers the emergence of a repressed memory in Hermione's mind that may change the course of her future

Just a fun little Doctor Who-Harry Potter fanfic.

The TARDIS keeps landing in the strangest of patterns. Hermione Granger grows suspicious of a blue box that seems to follow them. What happens when the Doctor finds himself and Amy thrust in the secret and huge wizarding war of the century?

Rose is stuck in Fred's World and the Doctor knows that getting her back is impossible. Then again, doesn't the universe just love to prove him wrong? Meanwhile, trouble is brewing for Rose on the other side of the wall. Sequel to "Clarke's Third Law"

a Doctor Who, Torchwood, Harry Potter and Merlin crossover, summary inside…

Albus and James are struck by a mystery when their cousin Hugo appears to have lost his magical powers. Is their new DADA teacher to blame? Is he really a wizard? Will the Doctor be able to help Hogwarts in time?

At a young age Harry met someone called the Doctor, he became his friend. Over the course of his school life the Doctor returned, in each of his incarnations. Leaving Hogwarts Harry continues to have adventures, visited upon by the Doctor's influences.

Some cross-y universe-y problems are occurring on the TARDIS. Harry is tired of Albus' obsession with a certain sci-fi show. In short, the Potters' lives may be changed forever.

The Tri-Wizard Tournament, and not only Harry's name comes out, Why is there a Blue box appearing everywhere? Why is there people dressed as muggles walking around the school excited? and also Why are they in the Tri-Wizard Tournament? Read to find out!

The Doctor comes back to visit Hermione. "She always knew he would come back for her and Hermione Granger was rarely ever wrong about anything." Oneshot, AU

Set 4 years after 'The Lycanthrope Legacy'. A stranger gatecrashes the Hogwarts Christmas party, warning of an alien presence. But what's invading the school? And who is the enemy within? Harry & his friends are in for a hell of a night. Pairings:HL & RHr

Lily and James have an uncle,an uncle with 2 hearts and had traveled through the universe and beyond. One day he comes to pick up a compainion as James went with him last time. Now it's lily's turn to travel the universe and defeat monsters!

It all started with my grandfather, or rather, it may have started with me and then my grandfather. It's complicated, I have a weird life, you see. Anyways, I think it started with a pocket watch or maybe before that...and then I was dead. Doctor!Harry

During the chaos at the Department of Mysteries, Harry ends up falling through the Veil instead of Sirius. It's just his luck that at the same time in another universe the Void had been opened and the Walls of Reality were weak. AU post Doomsday and OOTP.

As the walls of the universe collapse, putting everyone and everything in danger, they best of the best are drawn together. But how? And for what? More fandoms involved than mentioned. Full list inside .

An alien spaceship crashed in the lake close to the school, an eccentric Professor and a mysterious blue box? Harry's Fifth Year at Hogwarts is going to be an exciting one.

"And now, Old Girl, we wait for her to have a terrible day. Then I can – " he was cut off by a loud beeping sound, making him blink, "What? No. Not stealing. I'll give her back." He smirked a little, closing the door, "Eventually."

Harry Potter/Doctor Who crossover. When a mysterious blue box appears dangerously close to Twelve Grimmauld Place, Sirius finds himself faced with something he never expected.

Aliya Wickham is a witch, trying to escape the strange hooded figures chasing her. She finds a strange man in a blue box with his friends, the Ponds, and he takes her to see the stars.