This is a list of the most common phobias, ranked by people who find these things incapacitating. These popular fears can paralyze you or are incontrollable - no matter what logic tells you. Do you have any of these? Common phobias include aracnophobia (fear of spiders), acrophobia (fear of heights), and aviophobia (fear of flying), though there is no end to the number of things people can be afraid of. If your phobia isn't listed, add it, or press rerank to make your own list of the things you find most threatening. Let's find out the most common phobia. Vote and add! If you just want to vote on things that scare you, but aren't phobias, check out this list.