James (Jim) Grant Kalbfleisch (14 July 1940 – 23 April 2017) was a Canadian statistician and academic administrator.
He received his Ph.D. in Mathematics in 1966 from the University of Waterloo; his thesis was entitled "Chromatic Graphs and Ramsey's Theorem" and was supervised by Ralph Gordon Stanton.
He joined the faculty at the University of Waterloo, where he later held several positions, including the following: Chair of the Department of Statistics [now Statistics and Actuarial Science] (1975–1979); Dean of the Faculty of Mathematics (1986–1989); Associate Provost, Academic Affairs (1990–1993); Vice-President Academic and Provost (1993–2000).
In 1975, Kalbfleisch was elected a Fellow of the American Statistical Association.
In 1984, he served as president of the Statistical Society of Canada.