Devaraj is both a given name and a surname. Notable people with the name include:
Devaraj (born 1960), Indian actor Devaraj Bangera, Indian bishop A. Devaraj, Indian politician B. E. Devaraj, Indian translator Michael Jeyakumar Devaraj (born 1955), Malaysian politician Muttaiah Devaraj (born 1938), Sri Lankan cricketer Neal Devaraj (born 1980), American chemist P. P. Devaraj (born 1929), Sri Lankan politician Prajwal Devaraj (born 1987), Indian actor T Devaraj (born 1924), Malaysian medical doctor V. M. Devaraj, Indian politician D. Devaraj Urs (1915–1982), Indian politician