The Thames Torso Murders, often called the Thames Mysteries or the Embankment Murders, were a sequence of unsolved murders of women occurring in London, England from 1887 to 1889. The series included four incidents which were filed as belonging to the same series. None of the cases were solved, and only one of the four victims was identified. In addition, other murders of a similar kind, taking place between 1873 and 1902, have also been associated with the same murder series.
Speculations have linked the Thames murder series to that of the contemporary Whitechapel murders and Jack the Ripper. However, the modus operandi of the perpetrator of the Thames Torso Murders differs from the other unidentified criminal in that the victims of Jack the Ripper suffered progressive abdominal- and genital-area mutilation, whereas the Thames Torso Murderer dismembered the bodies of his victims.