10 Best Horror Movies to Watch Online This Halloween (Scariest Streaming Picks)
There’s no better way to spend spooky season than diving into a marathon of the best horror movies to watch online this Halloween. Whether you’re into psychological thrillers, classic slashers, or supernatural terror, this curated guide will keep you on the edge of your seat. From cult favorites to modern masterpieces, here are the essential horror picks you can stream right now.
1. The Conjuring (2013) – One of the Best Horror Movies to Watch Online This Halloween
Genre: Supernatural horror
When paranormal investigators Ed and Lorraine Warren take on the haunting at the Perron family farmhouse, things quickly turn dark. Based on a true story, The Conjuring redefined the modern haunted-house genre with atmosphere, tension, and terrifying set pieces.
Watch online on: HBO Max, Amazon Prime Video.
If you’re building a spooky watchlist, this is easily one of the best horror movies to watch online this Halloween.
2. Hereditary (2018) – Psychological Terror for Halloween Night
Genre: Psychological horror
Ari Aster’s Hereditary is unsettling from start to finish, following a family unraveling under the weight of grief, guilt, and something far darker. The slow burn, disturbing imagery, and Toni Collette’s legendary performance make it essential viewing.
Watch online on: Netflix, Hulu.
3. The Babadook (2014) – A Modern Classic to Watch Online This Halloween
Genre: Psychological / Monster horror
What begins as a creepy children’s storybook spirals into pure nightmare fuel. The Babadook is less about the monster in the shadows and more about grief, depression, and motherhood. Smart, suffocating, and unforgettable.
Watch online on: Amazon Prime, Tubi.
Add it to your list of the best horror movies to watch online this Halloween if you want scares with emotional depth.
4. Halloween (1978) – The Must-Watch Slasher for Halloween
Genre: Classic slasher
John Carpenter’s Halloween is the blueprint: a silent masked killer, minimalist score, and slow-building dread on quiet suburban streets. Michael Myers is still one of horror’s most iconic figures for a reason.
Watch online on: Peacock, Shudder.
5. The Exorcist (1973)
Genre: Supernatural / Possession
Often labeled the scariest movie ever made, The Exorcist still shocks decades later. Its chilling performances, practical effects, and exploration of faith and evil make it a true classic — and a brutal choice for a late-night scare session.
Watch online on: Amazon Prime Video.
6. Train to Busan (2016) – Intense Zombie Chaos to Stream This Halloween
Genre: Zombie thriller
This South Korean hit proves emotional storytelling and zombie carnage can go hand in hand. As a viral outbreak spreads, passengers trapped on a speeding train fight for survival — and their humanity.
Watch online on: Netflix.
For anyone looking beyond Hollywood, it’s one of the best horror movies to watch online this Halloween from international cinema.
7. Us (2019)
Genre: Social / Psychological horror
Jordan Peele’s Us dives into identity, privilege, and the monsters that look exactly like us. It’s stylish, layered, and full of eerie symbolism that sticks with you long after the final twist.
Watch online on: Hulu, Amazon Prime Video.
8. The Witch (2015)
Genre: Folk horror
Set in 1630s New England, The Witch is a slow-burn descent into paranoia and religious terror. The natural lighting, authentic language, and suffocating isolation create a uniquely unsettling experience.
Watch online on: Netflix, Max.
9. Let the Right One In (2008)
Genre: Vampire horror
This haunting Swedish film follows a lonely boy who befriends a mysterious girl — who isn’t a girl at all. It’s poetic, brutal, and strangely tender, offering a different kind of vampire story for Halloween night.
Watch online on: Hulu, Amazon Prime Video.
10. The Cabin in the Woods (2012) – Meta Horror Perfect for Halloween Streaming
Genre: Meta-horror / Comedy
What begins as a cliché cabin trip turns into one of the smartest genre deconstructions ever made. The Cabin in the Woods is bloody, hilarious, and packed with surprises that reward true horror fans.
Watch online on: Amazon Prime, Apple TV+.
If you love clever twists, this belongs on every list of the best horror movies to watch online this Halloween.
Final Thoughts: Best Horror Movies to Watch Online This Halloween
From chilling possessions to relentless slashers and smart psychological nightmares, these picks represent the best horror movies to watch online this Halloween. Whether you’re hosting a spooky movie marathon, watching alone with the lights off, or introducing friends to horror classics, this list gives you reliable, terrifying options ready to stream.
For even more nightmare fuel beyond these best horror movies to watch online this Halloween, explore our curated horror category and keep an eye on upcoming releases via the official IMDb horror section.
Queue them up, hit play, and let your Halloween night become a wickedly unforgettable scare-fest.