Ramaraju Vidyasagar Rao (14 November 1939 – 29 April 2017) was an Indian government administrator and a Telangana activist.
He was the Chief Engineer of the Ministry of Water Resources, Central Water Commission.
After the formation of Telangana State, he was appointed as the Advisor on Irrigation to the Government of Telangana.
He was the foremost expert on irrigation projects in Telangana, and was instrumental in highlighting injustices in water allocation for Telangana Region in United Andhra Pradesh.
The Dindi Lift Irrigation Scheme was named after him as R.
Vidyasagar Rao Dindi Lift Irrigation Scheme for his enormous contribution for irrigation in Telangana.
He fought for safe drinking water to the fluoride affected Nalgonda district and provide water to the arid lands in the Telangana region.