Royal Rumble 1991 was the fourth annual Royal Rumble professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF). It took place on January 19, 1991 at the Miami Arena in Miami, Florida. The main event was the 1991 Royal Rumble match won by Hulk Hogan, who last eliminated Earthquake to win the match. Featured matches on the undercard were The Ultimate Warrior versus Sgt. Slaughter for the WWF Championship, Ted DiBiase and Virgil versus Dusty Rhodes and Dustin Rhodes and The Mountie versus Koko B. Ware.