Tess Richey (30 November 1994 – 25 November 2017) was a Canadian woman who was killed after a Friday night out with a friend in the Church and Wellesley neighbourhood of Toronto. Four days after she had disappeared, her body was discovered by her mother at the bottom of an outdoor stairwell two houses from where she was last seen. A homicide investigation led to the arrest of Kalen Schlatter, who has been convicted of first-degree murder.
The Toronto Police Service (TPS) was criticized for failing to find the body when it was so close to where Richey had disappeared. TPS Chief Mark Saunders quickly ordered an internal review of her case, and later recommended an external review of how the TPS conducts missing persons investigations. Richey's death, along with the deaths of other missing persons at Church and Wellesley, led the TPS to create a dedicated missing-persons unit.