As of my last update in September 2021, the availability of movies on Netflix can vary by region and change over time. However, here are nine popular horror movies that were available on Netflix at that time and are highly recommended for horror enthusiasts:

1. “The Conjuring” (2013):
Directed by James Wan, “The Conjuring” follows the real-life paranormal investigations of Ed and Lorraine Warren. The film is known for its eerie atmosphere, well-crafted scares, and compelling storyline.

2. “A Quiet Place” (2018):
Directed by John Krasinski, “A Quiet Place” takes place in a post-apocalyptic world where a family must remain silent to avoid mysterious creatures that hunt by sound. It's a suspenseful and gripping horror-thriller that keeps you on the edge of your seat.

3. “Hereditary” (2018):
Directed by Ari Aster, “Hereditary” is a critically acclaimed psychological horror film that explores the disturbing secrets and sinister forces haunting a family. It's known for its unsettling atmosphere and powerful performances.

4. “The Babadook” (2014):
Directed by Jennifer Kent, “The Babadook” is an Australian horror film that follows a mother and son who are haunted by a mysterious creature from a children's book. It's a thought-provoking and haunting exploration of grief and motherhood.

5. “Train to Busan” (2016):
Directed by Yeon Sang-ho, “Train to Busan” is a South Korean zombie horror film set on a high-speed train during a zombie outbreak. The film offers intense action, emotional depth, and a fresh take on the zombie genre.

6. “Gerald's Game” (2017):
Based on Stephen King's novel, “Gerald's Game” follows a woman who becomes trapped in handcuffs after her husband's sudden death during a kinky sex game. It's a psychological thriller that delves into trauma, survival, and the human mind.

7. “The Witch” (2015):
Directed by Robert Eggers, “The Witch” is a slow-burning atmospheric horror film set in 17th-century New England, following a Puritan family tormented by supernatural forces. It's known for its historical accuracy and unsettling tension.

8. “Hush” (2016):
Directed by Mike Flanagan, “Hush” is a home-invasion horror film about a deaf woman who must defend herself against a masked intruder. The film utilizes silence and suspense to create a nerve-wracking experience.

9. “The Ritual” (2017):
Directed by David Bruckner, “The Ritual” follows a group of friends who become lost in a mysterious forest while hiking. It combines elements of folk horror and creature feature, offering chilling visuals and an eerie atmosphere.

Please note that the availability of these movies on Netflix may have changed since my last update, so I recommend checking Netflix directly to see if they are currently available in your region. Additionally, new horror movies are constantly added to the platform, so you may discover even more chilling films to enjoy.