Dattopant Bapurao Thengadi, (Marathi: दत्तोपंत ठेंगडी, 1920–2004) was an Indian Hindu Ideologue, trade union leader and founder of the Swadeshi Jagaran Manch, Bharatiya Mazdoor Sangh and the Bharatiya Kisan Sangh. He is one of the foremost ideologues of Swadeshi economics. He was born in the village of Arvi in Wardha district in Maharashtra.