Catherine Share (born December 10, 1942) is an American criminal who is known as a former member of the Manson Family; she was convicted of witness intimidation in relation to the 1970 trial of the Tate-LaBianca murders. In 1971 she was convicted of armed robbery and served five years. Share was not directly involved in the Tate-LaBianca murders, for which Charles Manson and some of his followers were convicted and originally sentenced to death. She served 90 days for witness intimidation.
Following her release from prison in 1975, Share disassociated herself from the "Family". She has spoken publicly about her experiences with them.