You would be called a quadrilingual.
A person who speaks four languages is called a quadrilingual.
People who speak several different languages are called polyglots.
Being able to speak two languages is called bilingualism.
A person who can speak two languages is called a bilingual.
four
Someone who can speak two languages is called bilingual.
Four
multilinguist, polyglot; use dictionary.com for more reference
A person who can speak different languages is called a polyglot.
Multilingualism.
Being able to speak two languages is called being bilingual.