Achyuta Deva Raya (r. 1529 - 1542 CE) was an emperor of Vijayanagara who succeeded his older brother, Krishnadevaraya, after the latter's death in 1529 CE.
During his reign, Fernao Nuniz, a Portuguese-Jewish traveller, chronicler and horse trader visited India and spent three years in Vijayanagara. His writings have brought to light many interesting details about Vijayanagara at that time, including construction of massive fortification works, watch towers and security walls.