Edo, officially known as Edo State, is a state in the South-South geopolitical zone of the federal republic of Nigeria. As of 2006 national population census, the state was ranked as the 22nd most populous state (10,233,366) in Nigeria. The estimated state population is around 10,777,000 in 2022. Edo State is the 22nd largest State by landmass in Nigeria. The state's capital and largest city, Benin City, is the fourth largest city in Nigeria, and the centre of the country's rubber industry. Created in 1991 from the former Bendel State, it is also known as the heart beat of the nation. Edo State borders Kogi State to the north for 133 km and across the Niger River for 81 km to the northeast, Anambra State to the east for about four km across the Niger River, Delta State to the southeast and south for 350 km, and Ondo State to the west.

Benin City is the capital and largest city of Edo State, southern Nigeria. It is the fourth-largest city in Nigeria according to the 2006 census, after Lagos, Kano, and Ibadan. It is situated approximately 40 kilometres (25 mi) north of the Benin River and 320 kilometres (200 mi) by road east of Lagos. Benin City is the centre of Nigeria's rubber industry, and Palm oil production is also a significant industry.