Anthony Quinton Keasbey (March 1, 1824 – April 4, 1895) was a lawyer who served as United States Attorney for the District of New Jersey under seven presidents. In addition he authored a book on poetry called From the Hudson to the St. Johns and Home Flowers: Pressed in My Law-books. He was also a part of the writing of Marching Song of the First Arkansas, in addition he wrote a law book called Slavery in New Jersey.