Tara Faye Grinstead (born November 14, 1974) was an American high school history teacher from Ocilla, Georgia, who went missing on October 22, 2005, and was declared dead in 2010.

On February 23, 2017, a press conference was held by the Georgia Bureau of Investigation (GBI) formally announcing that a tip that had been received that led to the arrest of Ryan Alexander Duke for Grinstead's murder and concealment. On March 3, 2017, an additional arrest was made public in connection with Grinstead's disappearance when Duke's former classmate Bo Dukes was charged with attempting to conceal a death, hindering apprehension and tampering with evidence.