Perfect Halloween Anime!!!
Anime
31 anime for the spookiest season of all!
Honorable mentions:
Danganronpa 1, 2, UDG, and V3 (1 anime is horrible and 3 is anime original, taking place after UDG and 2, and only the Despair arc is good)
A Kite (would've put it but it's technically a hentai)
Honorable mentions:
Danganronpa 1, 2, UDG, and V3 (1 anime is horrible and 3 is anime original, taking place after UDG and 2, and only the Despair arc is good)
A Kite (would've put it but it's technically a hentai)

ONA, 2018,
10 eps
Me:-
Author:9
Incredible horror anime and modern classic. If you're a fan, I also highly recommend the two 90's OVA's!

Movie, 1973,
1 ep
Me:-
Author:7
Artsy film from the 70's that is essentially a film-length music video.

TV, 2001,
13 eps
Me:-
Author:8
Could have put Ultimate, but this version has a way heavier atmosphere and delves a lot deeper into the horror elements of the series.

TV, 2007,
12 eps
Me:-
Author:10
Best horror piece of media I have ever experienced, a must-watch.

OVA, 2004,
3 eps
Me:-
Author:8
Gothic avante-gard series with some strange subject matter, but a great piece of art to put you in the spooky mood.

OVA, 2001,
3 eps
Me:-
Author:9
Very bizarre OVA series written by the legendary Chiaki J. Konaka, with the 2001 CGI adding to the layer of horror incredibly.

OVA, 2013,
4 eps
Me:-
Author:4
Low-key sucks, but it has some good kills and a lot of love. Heard the games are a lot better!

OVA, 2001,
4 eps
Me:-
Author:7
Very creepy series, which leaves on a bewildering cliffhanger.

TV, 2012,
12 eps
Me:-
Author:7
Modern horror staple, has some great atmosphere at points and a lot of iconic scenes.

Movie, 1992,
1 ep
Me:-
Author:8
Infamous film with a lot of disturbing imagery, definitely not for the faint of heart.

TV, 2024,
4 eps
Me:-
Author:-
Based on the classic Junji Ito manga, and looking to be an incredible adaptation!

OVA, 2000,
7 eps
Me:-
Author:7
Original adaptation (kinda) of JJBA, which hones in a lot more on the horror elements. I wouldn't recommend this being the first thing you watch from the series, though.

Movie, 1998,
1 ep
Me:-
Author:10
One of the greatest films of all time, will leave you feeling empty afterwards.

TV, 2008,
51 eps
Me:-
Author:8
Not horror at all, but has a great spooky atmosphere and great fantasy story.

Movie, 1985,
1 ep
Me:-
Author:7
80's classic, though usually looked down on in comparison to it's sequel.

TV, 2000,
12 eps
Me:-
Author:8
Incredibly strange series that captures the 2000's anime vibe perfectly. Serves as a sequel to the first novel of the same name, though you could substitute that for the first 3 episodes of the modern anime. Is solely anime original.

TV, 2014,
12 eps
Me:-
Author:9
Great horror seinen series, but only season 1 is a good adaptation. Read the manga afterwards, I beg!

TV, 1997,
25 eps
Me:-
Author:-
Adaptation of the most critically acclaimed manga of all time, with the horror really picking up at the end.

TV, 2004,
13 eps
Me:-
Author:-
TV series created by Satoshi Kon (of Perfect Blue), with a very disturbing subject matter.

TV, 2007,
12 eps
Me:-
Author:-
Ultra-violent action series which never got a full adaptation.

TV, 2000,
19 eps
Me:-
Author:-
I don't think you need me to tell you to watch the dub for this one.

TV, 1998,
13 eps
Me:-
Author:10
Greatest piece of media ever made, not very scary but will leave its mark on you with how experimental it is with the way it conveys its story.

TV, 2004,
74 eps
Me:-
Author:-
Incredible thriller/suspense anime, highly recommend if you want a show that you can sink your teeth into for a while.

TV, 2010,
12 eps
Me:-
Author:9
One of the best pieces of zombie media ever made, absolutely perfect for the season. Has LOTS of tits though.

TV, 2006,
26 eps
Me:-
Author:-
Very interesting series about a guy who lives in a town full of...
Interesting girls.
Interesting girls.