What phobia is the fear of squirrels?

The fear of squirrels is Sciurophobia. It's a very real phobia so don't let anyone tell you otherwise. The name seems to have some link to the fear of shdows (Sciophobia) probably because the latin name means literrally shadow tails, and so the 2 are often confused. But if you type Sciurophobia into Google then you'll get plenty of results.