Horror fiction, no matter the subject, has one goal in mind: to engender in the reader an intense feeling of fear, shock, or disgust. Whether this comes at the hands of supernatural monsters like zombies and vampires, or a good old-fashioned haunted house story is up to the reader.
If these kinds of stories are your creepy cup of tea, the authors below tend to write in the horror genre:
Laurell K. Hamilton
William F. Nolan
Edgar Allan Poe
F. Paul Wilson