Ragnar Anton Kittil Frisch (3 March 1895 – 31 January 1973) was a Norwegian economist and the co-winner with Jan Tinbergen of the first Nobel Memorial Prize in Economic Sciences in 1969. He is known for having founded the discipline of econometrics, and in 1933 to have created the widely used term pair macroeconomics / microeconomics.

Frisch was appointed by the King-in-Council as Professor of Economics and Statistics at the Faculty of Law, The Royal Frederick University in 1931. He served as the Dean of the Faculty of Law 1942–1943.

Ragnar Frisch was born on 3 March 1895 in Christiania as the son of gold- and silversmith Anton Frisch and Ragna Fredrikke b. Kittilsen. Being expected to continue his family business, Frisch became an apprentice in the David Andersen workshop in Oslo. However, at his mother's advice, while doing his apprenticeship Frisch also started studying at the Royal Frederick University. His chosen topic was economics, as it seemed to be "the shortest and easiest study" available at the university, and passed his degree in 1919. In 1920 he also passed his handicraftsman tests and became a partner in his father's workshop.