Calyampudi Radhakrishna Rao, FRS juga biasa dikenal sebagai C.R. Rao (10 September 1920 – 22 Agustus 2023) adalah seorang matematikawan dan statistikawan India-Amerika. Ia adalah profesor emeritus di Universitas Negeri Pennsylvania dan Research Professor di University at Buffalo. Rao dianugerahi sejumlah colloquia, gelar kehormatan dan festschrift dan dianugerahi US National Medal of Science pada 2002.^[1]

C.R. Rao meninggal dunia pada 22 Agustus 2023 di Buffalo, New York. Ia meninggal pada usia 102 tahun.^[2]

• Nalini Krishnankutty, 1996. Putting Chance to Work: A Life in Statistics: A Biography of C. R. Rao.

• Calyampudi Radhakrishnan Rao Diarsipkan 1999-09-04 di Archive-It. University of Minnesota Morris
• Statisticians in History: Calyampudi R. Rao" Diarsipkan 2016-03-03 di Wayback Machine.. American Statistical Association
• "Prof. C R Rao: An Eminent Statistician" By Bibhuprasad Mohapatra Diarsipkan 2015-09-24 di Wayback Machine.. Govt. of Odisha.

For the Cramér–Rao inequality and the Rao–Blackwell theorem see the relevant entries on

• Earliest Known Uses of Some of the Words of Mathematics

For Rao contribution to information geometry

• Cramer-Rao Lower Bound and Information Geometry

Photograph of Rao with Harald Cramér in 1978

• C. R. Rao from the PORTRAITS OF STATISTICIANS
• President George Bush awarding Rao the National Medal of Science