Grant Louis Reuber, OC FRSC (23 November 1927 – 7 July 2018) was a Canadian economist, academic, civil servant, and businessman.

He was a professor of economics at the University of Western Ontario from 1962 to 1969, and was the first economist to explicitly use the inverse relationship between unemployment and inflation as a policy constraint.

He became the first dean of the Faculty of Social Science at the University of Western Ontario in 1969, was named vice-president (Academic) and Provost in 1974,[3] and served as Chancellor from 1988 to 1992.

[4] At the time of his death the President of Western described his contributions to the university as "virtually unrivaled" and said that "no one has played so many important leadership roles within the institution".

From 1993 to 1999 he was chairman of the Canada Deposit Insurance Corporation, a period in which "virtually every aspect" of the organization was transformed.