Arachnophobia, or the fear of spiders and other arachnids, is fairly common and varies in severity from individual to individual. It would seem that about 50% of men and 10% of women suffer from it.
The specific data of how many people are afraid of spiders in the world is somewhat biased. it is impossible to have a 100% accurate answer since many people around the world have not been surveyed on this question and also many people have never a spider.
