Preston Veltman was an American chemist.
Veltman was born in Grand Rapids, Michigan. He studied at Michigan Technological University, and earned a Ph.D. in physical chemistry from the University of Wisconsin. Veltman was recruited to work on the Manhattan Project at Los Alamos during World War II. After the war, he later worked for the Washington Research Center of W.R. Grace.
Preston Veltman died on March 21, 2000.