Jay Robert Nash (November 26, 1937 – April 22, 2024) was an American author of more than 80 true crime books[1] once called the "world's foremost encyclopedist of crime."[2] Among Nash's crime anthologies are Encyclopedia of Western Lawmen and Outlaws, Look For the Woman, Bloodletters and Badmen, and The Great Pictorial History of World Crime. He also compiled his exhaustive research of criminal behaviour into a CD-ROM entitled Jay Robert Nash's True Crime Database.
While Nash's books won a number of "Best Reference" citations from the American Library Association, his works were also criticized for including misinformation or wrong data.