Linguists

A linguist in the academic sense is a person who studies natural language (an academic discipline known as linguistics).

http://en.wikipedia.org/wiki/Linguistics

Ambiguously, the word is sometimes also used to refer to a polyglot (one who knows several languages), or a grammarian (a scholar of grammar), but these two uses of the word are distinct (and one does not have to be a polyglot in order to be an academic linguist). The following is a list of linguists in the academic sense.

List of linguists

http://en.wikipedia.org/wiki/List_of_linguists