Devendra Lal FRS (14 February 1929 – 1 December 2012) was an Indian geophysicist.
He was born in Varanasi, India. He graduated from Banaras Hindu University. He graduated from Bombay University; his thesis was on cosmic ray physics; his thesis adviser was Bernard Peters.
He was Director, of the Physical Research Laboratory, Ahmedabad from 1972 to 1983.
He was Visiting Professor at Scripps Institution of Oceanography, University of California, San Diego, from 1989 to 2012.