Charles William Royster (November 27, 1944 – February 6, 2020) was an American historian and a Boyd Professor at Louisiana State University.

[1] He was born in Nashville, Tennessee, on November 27, 1944, the only son of Ferd Neuman Royster of Robards, Kentucky, a United Methodist minister, and Laura Jean (née Smotherman) Royster of Carthage, Tennessee, an elementary school teacher (both now deceased).

He moved with his parents and younger sister from Atlanta, Georgia to California in 1954, where, with the exception of his military duty, he continued to maintain residence until accepting a post-doctoral fellowship at College of William & Mary in Williamsburg, Virginia, revising his dissertation for publication as his first book, A Revolutionary People at War.

He was salutatorian of his high school graduating class in Dixon, California, as well as manager of the basketball team, founder and president of the Chess Club, and recipient of several academic scholarships, which financed his tuition at University of California, Berkeley, from which he graduated with an A.B.

During his years of service to the United States Air Force, he was stationed in Thailand and Shreveport, Louisiana, being honorably discharged as a captain prior to beginning his doctoral program in history.