Digavalli Venkata Siva Rao (Telugu: ???????? ????????????, IAST: Digavalli Venka?asivaravu; 14 February 1898, Kakinada, Madras Presidency, British India - 3 October 1992, Bhopal, Madhya Pradesh, India), or Digavalli Sivaravu, was a lawyer, historian and Telugu writer from Vijayawada, Andhra Pradesh.
He is the author of forty-two books and some 300 articles written between 1924 and 1987.
Some of his works are available in the Indian Digital Library.
He actively engaged with the Indian Independence Movement led by Gandhi.
Siva Rao's analyses and critiques of British colonial rule drew the attention of the rulers—some of his books and pamphlets were proscribed, and he was accused and tried for sedition in the 1930s.
As a volunteer for the Indian National Congress, he was in charge of publicity for Krishna District.
He offered his legal services to many Congress volunteers who were arrested during the Salt Satyagraha.
After Independence, he served on various government committees for the Telugu language.
Siva Rao was active in the literary, cultural and intellectual scene of Andhra Pradesh and formed friendships with many of his contemporaries like Veluri Sivarama Sastry, Basavaraju Apparao, Viswanadha Satyanarayana, N.
Gopi, and Narla Venkateswara Rao.
Siva Rao was honoured by the Andhra Pradesh Government in 1966.
The Andhra Pradesh History Congress honoured him twice.