Tammy Jo is a given name. Notable persons with this name include:
Tammy Jo Kirk (born 1962), American racer Tammy Jo Alexander (1963–1979), American murder victim formerly known as "Caledonia Jane Doe" Tammy Jo Zywicki (1971–1992), American murder victim Tammy Jo Trask, protagonist of the Southern Witch series by Kimberly Frost
See Also Tammie Jo Shults (born 1961), American aviator and writer