Harold Mead Stark (born August 6, 1939)[1] is an American mathematician, specializing in number theory.
He is best known for his solution[2] of the Gauss class number 1 problem, in effect correcting and completing the earlier work of Kurt Heegner, and for Stark's conjecture.
More recently, he collaborated with Audrey Terras to study zeta functions in graph theory.
He is currently on the faculty of the University of California, San Diego.
[3] Stark was elected to the American Academy of Arts and Sciences in 1983 and to the United States National Academy of Sciences in 2007.