Raghu Raj Bahadur (30 April 1924 – 7 June 1997) was an Indian statistician considered by peers to be "one of the architects of the modern theory of mathematical statistics".

[5] He published numerous papers[6] and is best known for the concepts of "Bahadur efficiency"[7] and the Bahadur–Ghosh–Kiefer representation (with J. K. Ghosh and Jack Kiefer).

[8] He also framed the Anderson–Bahadur algorithm[9] along with Theodore Wilbur Anderson which is used in statistics and engineering for solving binary classification problems when the underlying data have multivariate normal distributions with different covariance matrices.

He held the John Simon Guggenheim Fellowship (1968–69)[10] and was the 1974 Wald Lecturer of the IMS.

[4] He was the President of the Institute of Mathematical Statistics during 1974–75[10] and was elected a Fellow of the American Academy of Arts and Sciences in 1986.