Dennis Gabor was a Hungarian physicist who is most notable for inventing holography.

Gabor was educated at Budapest and Berlin. Having fled from Nazi Germany in 1933, Gabor was invited to Britain to work at the development department of the British Thomson-Houston company in Rugby, Warwickshire. In 1947 whilst working there he invented holography, an achievement for which he later received the Nobel Prize in Physics in 1971. Holography however did not become commercially available until the introduction of the laser in 1960. Gabor also researched how human beings communicate and hear; the result of his investigations was the theory of granular synthesis, although Greek composer Iannis Xenakis claims that he was actually the first inventor of this synthesis technique (Xenakis, Formalized Music, preface xiii).

In 1948 Gabor moved from Rugby to the Imperial College London, and in 1958 became professor of Applied Physics until his retirement in 1967. He spent most of his retirement in Italy.