The person who introduced indirect rule in Nigeria was Lord Lugard. Indirect rule was a system of governance used by the British during their colonial rule of Nigeria, where traditional rulers were used as intermediaries between the colonial government and the local people. Lord Lugard was a British colonial administrator who served as the first Governor-General of both the Northern and Southern protectorates of Nigeria from 1914 to 1919. He introduced indirect rule as a way to govern the diverse peoples of Nigeria without the need for a large and expensive administrative bureaucracy. The traditional rulers were given the authority to maintain law and order, collect taxes and administer justice, with the British colonial officials providing oversight and support. Therefore, out of the options given, the correct answer is "Lord Lugard."