Paul Henry Ginsparg (born January 1, 1955) is an American physicist.

He graduated from Harvard University with a Bachelor of Arts in physics and from Cornell University with a Doctor of Philosophy in theoretical particle physics with a thesis titled Aspects of symmetry behavior in quantum field theory.

Ginsparg was a junior fellow and taught in the physics department at Harvard University until 1990.

[4] The pre-print archive was developed while he was a member of staff of Los Alamos National Laboratory, 1990–2001.

Since 2001, Ginsparg has been a professor of Physics and Computing & Information Science at Cornell University.