The online streaming service announced the news with a short teaser video for "Part II".
In the 15 second clip, the star of the show Prairie Johnson (played by Brit Marling) is heard crying "Homer".
Speaking this morning, creator and star Brit said she had always envisioned a second series.
She told Vulture: “We always thought of it almost like books, and there could be many different volumes. In some ways, [part one] is a self-contained story…
The OA will be back for a second season, Netflix have confirmed
The OA: Brit Marling promised there were lots of "spaces" to be delved in to
"The science-fiction, metafictional elements are open-ended so there can be a part two in which we can delve into those spaces.”
The first season of the psychological thriller was a huge hit with viewers when it was released in December and so it was always thought a second would be commissioned.
The last episode ended on a dramatic cliffhanger as Prairie woke up in a white room calling out "Homer".
The OA season one ended on a dramatic cliffhanger
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The OA: Unanswered questions for series 2
Tue, January 3, 2017
OA series 2: Questions we need answered after watching the first series on Netflix.
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Was The OA telling the truth?
It remains to be seen whether she had travelled through a portal into another dimension or if her story was in fact all a lie.
Co-creator Zal Batmanglij teased: “Maybe she couldn’t tell her story as it actually happened, but she experienced something.
“I don’t think the details matter. I think that there are lots of different interpretations. I think that’s what’s going to make it fun, if people do connect to it.”
The OA season 2 will return to Netflix soon