Patcha Ramachandra Rao (21 March 1942 – 10 January 2010) was a metallurgist and administrator.
He has the unique distinction of being the only Vice-Chancellor (2002–05) of the Banaras Hindu University (BHU) who was also a student (1963–68) and faculty (1964–92) at that institution.
From 1992 to 2002, Rao was the Director of the National Metallurgical Laboratory, Jamshedpur.
After his tenure as Vice-Chancellor of B.H.U., in 2005, he took the reins of the Defence Institute of Advanced Technology (DIAT) as its first Vice-Chancellor.
He was to serve DIAT until his superannuation in 2007.
From 2007 till the end, Rao was a Raja Ramanna Fellow at the International Advanced Research Centre for Powder Metallurgy and New Materials, in Hyderabad, Andhra Pradesh.