Frederick Cecil Mills (March 24, 1892 – February 9, 1964) was an American economist.
He was a Professor of Economics at Columbia University in Manhattan from 1919 to 1959.
An expert on business cycles, he was also a researcher at the National Bureau of Economic Research from 1925 to 1953.
In 1940, he served as President of the American Economic Association.His son, Robert Mills, was a physicist known for the development of Yang–Mills theory.