Hartland Snyder (1913 -22.05.1962) was an American theoretical physicist. He was born in Salt Lake City. He graduated from the University of Ithaca (1937) and in 1940 received the degree of Doctor of Philosophy at the University of California. In 1940—47 he worked at Northwestern University, and from 1947 at the Brookhaven National Laboratory.
His work was in the fields of general relativity, accelerator physics, the theory of elementary particles, plasma physics and controlled thermonuclear fusion. In 1939, together with R. Oppenheimer, he predicted black holes, and in 1947 he put forward the idea of quantised space, proposing a scheme for the relativistic quantisation of space-time. In 1952, with M. Livingston and E. Courant (independently of N. Christofilos, 1950), he developed the principle of strong focusing, which underlies the operation of powerful accelerators.