Xenophobia

n. fear of strangers

Xenophobia is a fear or contempt of foreigners or strangers and people . It comes from the Greek words ξένος (xenos), meaning "foreigner," "stranger," and φόβος (phobos), meaning "fear." The term is typically used to describe fear or dislike of foreigners or in general of people different from one's self.
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Xenophobia /xeno·pho·bia/ irrational fear of strangers. xen·o·pho·bi·a n. Fear and contempt of strangers or foreign peoples. [more]Xenophobia - Community and Resources

Noun
1. an irrational fear of foreigners or strangers
(hypernym) social phobia

fear of strangers.