Master Canchupati Venkata Rao Venkatasami Rao, popularly known as Master C.V.V. (4 August 1868 - 12 May 1922) was an Indian philosopher, yogi, and guru. Master C.V.V served as the Chairman of Kumbakonam Municipal Council for some time and later became a spiritual reformer, introducing his visions on human progress and spiritual evolution.