Teresa Maida Cormack (18 June 1981 – 19 June 1987) was a six-year-old murder victim from Napier, New Zealand. After fifteen years, advances in genetic analysis led to conviction of Jules Mikus (28 September 1958 – 6 December 2019) for the crime. He had been identified as a potential suspect early in the investigation, but had offered an alibi that was accepted at the time.