Maharaja Sri Sir Nalwadi Krishnaraja Wadiyar IV (Nalwadi Krishnaraja Wadiyar; ಶ್ರೀ ಶ್ರೀ ಶ್ರೀ ನಾಲ್ವಡಿ ಕೃಷ್ಣರಾಜ ಒಡೆಯರ್) (4 June 1884, Mysore Palace – 3 August 1940, Bangalore Palace) was the ruling Maharaja of the princely state of Mysore from 1894 until his death in 1940. At the time of his death, he was also one of the world's wealthiest men, with a personal fortune estimated in 1940 to be worth US$400 million, equivalent to $56 billion at 2010 prices.