Eknath Ramkrishna Ranade (19 November 1914 – 22 August 1982), popularly referred to as Eknathji, was a social activist and leader, motivated by the twin spirits of nationalism and spiritualism, and known for his great organisational abilities.Having joined the Rashtriya Swayamsevak Sangh (RSS) while still in school, he became an important organiser and leader for the organisation, rising through its ranks to serve as its general secretary from 1956–62.
Ranade was greatly influenced by the teachings of Swami Vivekananda, and compiled a book of Vivekananda's writings.
During the 1963—72 period, Ranade played an instrumental role in the construction of the Vivekananda Rock Memorial and the Vivekananda Kendra at Kanyakumari, Tamil Nadu.