Ratty

Ratty may refer to:


 * the Ratty, a coloquialism for the Sharpe Refrectory, the primary dining hall at Brown University.
 * Ratty (railway), a heritage railway in Cumbria, England
 * Ratty, a character in the novel The Wind in the Willows by Kenneth Grahame
 * Ratty, a pseudonym of some members of Scooter, best known for the single "Sunrise (Here I Am)"
 * Ratty, a Disney character from the Donald Duck universe
 * Ratty (film), a 1986 Swedish animated feature film