I used my own knowledge of lgbt horror + scoured multiple corners of the internet to compile this list, and am attempting to make it a comprehensive one. 

which means it will include anything from subtextual: homoeroticism, gender ambiguity & nonconformity, lgbt allegories, queercoding & hays code censorship, etc, 
to textual: explicit homosexual acts, openly lgbt character(s), wears a rainbow on its sleeve, etc, and keep in mind not all of it will be positive portrayals of the community, in fact a not insignificant number of these are negative or bigoted, but I think it’s important to include them.

being that I haven’t seen every movie listed here I can’t always attest to the quality or quantity of lgbt content or lack thereof, this isn’t a recommendations list (I have a separate list for that), but rather a frame of reference for others, and a passion project for myself. 

tldr: you can use this as a guide, but I’d recommend you still do your own research. 

if you have objections to a movie being included in this list you are welcome to explain why in the comments as long as you are respectful and informative (so tell me why you think that), 
rude and/or unproductive comments will be deleted. 

I am not interested in debating what counts as horror and what doesn't, and comments of the sort will also be deleted.

if upon (re)watching I find that a movie on this list doesn't have anything lgbt in it I will remove it.

(slow work in progress, but check notes for content warnings.)