Kenneth Brooks Reid, Jr. is a graph theorist and the founder faculty (Head 1989) professor at California State University, San Marcos. He specializes in combinatorial mathematics. He is known for his work in tournaments, frequency partitions and aspects of voting theory. He is known (with E. T. Parker) on a disproof of a conjecture on tournaments by Erdos and Moser
He received his Ph.D. on a dissertation called "Structure in Finite Graphs" from the University of Illinois at Urbana-Champaign in 1969, his advisor was E. T. Parker. Reid is a professor emeritus at Louisiana State University (1968–1989) and has guided students for their Ph.D.s at Baton Rouge.