Traditionally it is believed that the prophet Jonah is the author of the book Jonah, however there are no proof of this especially if one consider that the book refers to Jonah in the third person.

Scriptures quoted by other authors

Luke

Jesus personally mentioned Jonah:

The men of Nineveh will rise up at the judgment with this generation and condemn it, for they repented at the preaching of Jonah, and behold, something greater than Jonah is here. -- Luke 11:32 (ESV)