Tammy Jo Alexander (November 2, 1963 – November 9, 1979) was an American homicide victim found in the town of Caledonia, New York, on November 10, 1979. She had been fatally shot twice and left in a field just off U.S. Route 20 near the Genesee River after running away from her home in Brooksville, Florida earlier that year. For more than three decades, she remained unidentified under the name Caledonia Jane Doe or "Cali Doe" until January 26, 2015, when police in Livingston County, New York announced her identity 35 years after her death.