Juana Barraza (born 1956) is a Mexican professional wrestler and serial killer dubbed La Mataviejitas (Sp. "The Old Lady Killer") sentenced to 759 years in jail for killing eleven elderly women. The first murder attributed to Mataviejitas has been dated variously to the late 1990s and to a specific killing on 17 November 2003. The authorities and the press have given various estimates as to the total number of the killer's victims, with estimated totals ranging from 24 to 49 deaths.