John Thomas Abdy (July 5, 1822 – September 25, 1899) was Regius Professor of Civil Law at Cambridge University.
John Thomas Abdy was the son and heir of Lt.-Col. James Nicholas Abdy of the East India Company. His early education was at the Kensington Proprietary Grammar School. He graduated in 1844 from Trinity Hall, Cambridge, Cambridge. He received an LL.B. in 1847 and an LL.D. in 1852.[1] In 1850 he became a fellow at his college and was called to the bar.
From 1854–1873 he was Regius Professor of Civil Law at Cambridge, and in 1858 became Gresham Professor of Law in London. He also served as a County Court Judge.