Because we all love some good fanfiction, I've decided to round up all the fanfics I have come across and organize it into this masterpost. I hope you all enjoy it!

MOSTLY KATHERINE/ELIJAH

link
Summary: From the moment Elijah had found her wondering around the castle gardens, he knew that something had to happen. Something had to change. Katerina couldn't become the sacrifice that Klaus wanted.

link
Summary:Klaus sets Katherine free, compelling her to kill Stefan and Damon and bring him Elena not knowing shes taken vervaine. Instead of running she decides to help them to make up for her past wrongs, not knowing Elijah's alive and with them.

link
Summary:A short one-shot about why Elijah wants to find Katherine now, set in the flashbacks of the episode "Klaus". 1492.

link
Summary:The moment her eyes met Elijah’s, she was ever the wide-eyed innocent again.

link
Summary:She found him to be incredibly vexing - and the reason behind it, or the lack thereof, vexed her even more - but she supposed he was better company than Trevor.

link
Summary:Not Found :(

link
Summary:Based on the prompt "I don't love anyone. You're not listening."

link
Summary:Katherine and Elijah have a long history of distrust, but what happens when his plans involve her participation? What will she agree to, and what are her motives? She may surprise even herself. Set during As I Lay Dying. Two-shot.

link
Summary:"Why do you stand in the rain and wait for me, With dark clothes, dark thoughts on your mind" (Sometime in the future, post Klaus's defeat.)

KATHERINE/ELIJAH AMONG OTHER PAIRINGS

link
Summary:The survival of Katerina Petrova & Katherine Pierce

RATED M OR NC-17

link
Summary: Katerina was always very good at getting what she wants.

link
Summary:The story of how Katerina Petrova became Katherine Pierce

link
Summary:It is Elijah’s curse to fall in love with humans, and it is his burden to watch them be destroyed.

link
Summary: Based on the prompt "the first time she's caught between two brothers, the games aren't hers to play and the tales aren't hers to spin"

ALTERNATE UNIVERSE (AU) OR ALL HUMAN (AH)

link
Summary:Katherine's parents want to marry her off to an unknown man. She runs off to Vegas to get away. What if she runs into that same unknown man there? AU & AH

link
Summary:Elijah had fallen prey to Katerina's sultry prowess just like the Salvatore brothers. Only he loved her before she was a vampire...

Please feel free to comment if you've found a fic not yet listed or if you consider one of the above stories incorrectly labeled!