Christopher Bernard Wilder (March 13, 1945 – April 13, 1984), also known as the Beauty Queen Killer, was an Australian serial killer who abducted and raped at least 12 women, killing at least eight of them, during a six-week, cross-country crime spree in the United States in early 1984. Wilder's series of murders began in Florida on February 26, 1984, and continued across the country through Texas, Oklahoma, Colorado, Nevada, and California, and attempted abductions in Washington and New York before he was killed during a struggle with police in New Hampshire on April 13, 1984.