Edo is the name for the place, people and language of an ethnic group in Nigeria. Other Edo-speaking ethnic groups include the Esan, the Afemai, the Isoko, the Urhobo among others. Also referred to as Bini or Benin ethnic group though currently the people prefer to be simply called Edo, the Edo are the descendants of the people who founded the Benin Empire, which is located in South/Mid-Western Nigeria now called Edo State.

The name Benin is a Portuguese corruption ultimately from the Itsekhiri's "Ubinu", which came into use during the reign of Oba Ewuare the Great circa 1440. The Itsekhiri's "Ubinu" was used to describe the royal administrative centre or city or capital proper of the kingdom, Edo. 'Ubinu' was later corrupted to 'Bini' by the mixed ethnicities living together at the centre; and further corrupted to "Benin" around 1485 when the Portuguese began trade relations with Oba Ewuare. See Oba of Benin

Edo (江戸, Edo^?, literally "bay-entrance" or "estuary"), also romanized as Yedo or Yeddo, is the former name of the Japanese capital Tokyo. It was seat of power for the Tokugawa shogunate, which ruled Japan from 1603 to 1868. During this period it grew to become one of the largest cities in the world and home to an urban culture centered on the notion of a "floating world".

From the establishment of the Tokugawa bakufu's headquarters at Edo, although Kyoto remained the formal capital of the country the de facto capital was now Edo; it was the center of political power. Edo grew from what had been a small, little-known fishing village in 1457 to a metropolis with an estimated population of 1,000,000 by 1721 (the largest city in the world at the time).

Edo was repeatedly devastated by fires, with the Great Fire of Meireki in 1657 (in which an estimated 100,000 people died) the most disastrous. During the Edo period there were about 100 fires (most begun by accident, often quickly escalating and spreading through neighbourhoods of wooden machiya which were heated with charcoal fires. Between 1600 and 1945, Edo/Tokyo was leveled every 25–50 years or so by fire, earthquakes, tsunami, volcanic eruptions or war.