The specific phobia of Halloween is known as Samhainophobia.
Samhainophobia is an intense and irrational fear of Halloween, which includes fear of ghosts, witches, and other supernatural beings that are commonly associated with the holiday.
The phobia can manifest as anxiety, panic attacks, and an overwhelming sense of dread. Like other phobias, Samhainophobia can be treated with therapy, medication, and other forms of professional support.