S. Ramachandran (9 September 1934 — 2016) was an Indian scientist responsible for the setting of the Department of Biotechnology under the Government of India. He became the first secretary to the department in 1986. He was awarded the Padma Bhushan in 2011, the third highest civilian award given by the Government of India, for his contributions to Indian science. The DBT has initiated an annual S. Ramachandran Lecture series in homage to its founder.
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- "DBT salutes its former secretaries: teachers who steered the department". Department of Biotechnology, Government of India. Retrieved 22 August 2018.