Deluxe EP, also known as Rockferry (Deluxe) – EP, is a 2009 extended play by Welsh recording artist Duffy released in the United States. A custom EP containing tracks from the deluxe edition of her internationally successful debut album, Rockferry, it was released solely by Duffy's US label Mercury Records instead of the deluxe edition that was released in several other markets. It includes the singles "Mercy" and "Rain on Your Parade".