Thomas Perkins Abernethy (August 25, 1890 – November 12, 1975) was an American historian and academic. He served as a professor of early American history at a number of universities throughout the South and Southwest United States. He mainly taught early American colonial history that concentrated on southern states, their notable figures, frontier life, the move westward, and how it impacted the social, economic and political fabric of colonial America and its transition into an independent nation.