John McClelland

John McClelland (1805–1875) was a British medical doctor with interests in geology and biology, who worked for the East India Company.

He was appointed 1836 as the secretary of the "Coal Committee", the forerunner of the Geological Survey India (GSI), formed to explore possibilities to exploit Indian coal. He was the first to propose hiring professional geologists for the task.

He also served as an interim superintendent of the Calcutta Botanical Garden from 1846 to 1847. He is commemorated in the name of the Mountain Bulbul Hypsipetes mcclellandii.