Vishwanath Kashinath Rajwade (Marathi: विश्वनाथ काशिनाथ राजवाडे) (24 June 1863 – 31 December 1926), popularly known as Itihasacharya Rajwade, was an eminent historian, scholar, writer, commentator and orator from Maharashtra. He is considered to be the first in real sense to undertake an immense research of Maratha History by visiting hundreds of villages and historical places all over India and gathering thousands of genuine historical papers. He is also known to be the notable commentator on the various aspects of world history. He was the founder member of Itihas Sanshodhak Mandal, Pune. His disciples include historians like Datto Vaman Potdar and G.H.Khare.
Eminent Historian, R.S. Sharma writes of him as, "With his unadulterated passion for research, V.K.Rajwade went from village to village in Maharashtra in search of Sanskrit manuscripts and sources of Maratha history; which were published in twenty-two volumes.
Historian Rajwade should not be confused with 'Ahitagni' Shankar Ramchandra Rajwade; Ahitaagni Rajwade was a vedic scholar.