Raja Raja Chozhan I (Tamil: 鉈啤挽鉈?鉈啤挽鉈?鉈???鉈毯悟鉒?, popularly known as Raja Raja the Great, is one of the greatest emperors of the Tamil Chola Empire of India who ruled between 985 and 1014 CE.

By conquering several small kingdoms in South India, he expanded the Chola Empire as far as Sri Lanka in the south, and Kalinga (Odisha) in the northeast. He fought many battles with the Chalukyas to the north and the Pandyas to the south.

By conquering Vengi, Rajaraja laid the foundation for the Later Chola dynasty. He invaded Sri Lanka and started a century-long Chola occupation of the island.