Santosh Mohan Dev () (1 April 1934 – 2 August 2017), was a Indian political leader and a key member of the Indian National Congress. Dev was first elected to the Parliament in 1980, the first of his seven terms in office as the Member Of Parliament. Out of these seven, he has represented Silchar, Assam five times and he was elected from Tripura twice. He was born in Silchar, Assam Province, British India.