Nagaraj, Nagraj or Nagaraja or Nagarajan is a male Indian given name and Indian surname. It originates in the Sanskrit: नागराज nagaraja 'king of the nāgas'. It is especially prevalent in southern India and northeastern parts of India.

• D. R. Nagaraj (1954–1998), Indian cultural critic and political commentator
• Dingri Nagaraj, Indian actor in the Kannada film industry
• Erode Nagaraj (born 1970), Mridangam player, lecturer in The Music Academy, Chennai
• Indu Nagaraj, Indian playback singer
• Manoranjitham Nagaraj, Indian politician and incumbent member of the Tamil Nadu Legislative Assembly
• Milana Nagaraj (born 1989), Indian film actress
• Nagaraj Gobbargumpi (born 1982), Indian high-jump athlete
• R Umadevi Nagaraj (born 1965), Indian professional player of English billiards and snooker, World Women's Billiards Champion 2012
• Ramakrishnan Nagaraj (born 1953), Indian biochemist and molecular biologist
• Shringar Nagaraj (1939–2013), Kannada actor, cameraman, and producer of India's first silent movie
• V. Nagaraj (born 1962), Malaysian director, producer, distributor and consultant
• Vatal Nagaraj, politician from Karnataka

• Nagaraja Rao (1914–2004), Indian cricketer and umpire
• Nagaraja Rao Havaldar (born 1959), Indian classical vocalist
• V. Nagaraja (born 1954), Indian microbiologist
• Mamta Patel Nagaraja, American engineer

• Munishree Nagraj, Indian writer and poet
• Nagraj Manjule (born 1977), Indian filmmaker and screenwriter
• Roopa Nagraj (born 1983), Emirati cricketer

• Nagraj, fictional superhero appearing in Raj Comics
• Nagaraj, protagonist of R.K. NArayan's 1991 novel The World of Nagaraj
• Nagaray (and variations), snake-prince and lover to lady Himal, from Kashmiri tale Himal and Nagaray
• Nagaraja Cholan, protagonist of the 2013 Indian Tamil film Nagaraja Cholan MA, MLA

• Nagarajan (disambiguation)
• Nagaraj (disambiguation)
• Nagaraja