Pauline Yvonne Parker (born 26 May 1938) is a woman from Christchurch, New Zealand, who, together with her friend Juliet Hulme (now known as acclaimed fiction author Anne Perry), murdered her mother, Honorah Rieper, on 22 June 1954. It is believed that the two girls killed Honorah because Hulme and her father were leaving shortly for South Africa and, though Parker wanted to accompany them, her mother forbade it. According to their own accounts, Parker and Hulme were devoted friends who collaborated on a series of adventure novels which they hoped would be bought by a Hollywood studio and made into epic films. The girls' friendship was documented in detail by Parker in a series of diaries during her teenage years.