A protagonist in the famous Harry Potter series, written by J.K. Rowling. He is Harry Potter's best friend, and is very important to the plot. He is (as we learn from Goblet of Fire) the person Harry Potter would miss most. He becomes Hermione Granger's husband later on in the series. Also, he is often mistook for a character for comic relief by people who have not read the books, yet judge the characters anyway.
Did you read the Prophet today? Ron Weasley and Hermione Granger are getting married!