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 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 (no familial relation) was charged with attempting to conceal a death, hindering apprehension and tampering with evidence.

Grinstead was born November 14, 1974, in Hawkinsville, Georgia to Bill and Faye (nee Bennett) Grinstead. She had one sibling, Anita Grinstead. A native of Hawkinsville, Georgia, Grinstead won the title of Miss Tifton in 1999 and competed in the Miss Georgia beauty pageant. Her winnings from this pageant and many others that she had entered helped her pay for college. Grinstead graduated from Middle Georgia College in Cochran and in 2003 earned a master's degree in education at Valdosta State University. In 1998, she began teaching history at Irwin County High School in Ocilla.

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