Mahadeva Iyer Ganapati (known as M. Ganapati) (1903–1976) was an Indian engineer who was well known for his accomplishments in national projects. The Rourkela Steel Plant in Orissa, and many Railway projects including Churchgate railway station in Mumbai and Chittaranjan Locomotive Works (CLW) were completed under his leadership. The Indian government awarded him the inaugural Padma Bhushan in 1954. He was the president of the Institution of Engineers (India) for 1973-74.
The main projects with which he was associated with are: Rourkela Steel Plant Kandla Port Malaviya Bridge at Varanasi Chittaranjan Loco Works Perambur Integral Coach factory Vivekananda Setu, Kolkata (as Deputy) Churchgate Railway Station and other Western Railway projects