Igbo-Ukwu (English: Great Igbo) is a town in the Nigerian state of Anambra in the south-central part of the country. The town comprises three quarters namely Obiuno, Ngo, and Ihite (an agglomeration of 4 quarters) with several villages within each quarter and thirty-six (36) administrative wards. It is also bordered by Ora-eri, Ichida, Azigbo, Ezinifite, Amichi, Isuofia, Ikenga and some other towns.

Igbo-Ukwu, originally known as Igbo-Nkwo, was the capital of the Kingdom of Nri beginning in the 8th or 9th century CE. It was the center of an extensive trade system linking the town with Gao on the Niger River and, through there, to Egypt and North Africa. It was also a prominent center of lost-wax casting in bronze, one of the earliest in Africa.

The modern town saw an outbreak of vigilante violence in 2013.

Igbo-Ukwu is notable for three archaeological sites, where excavations have found bronze artifacts from a highly sophisticated bronze metal-working culture dating to 9th century AD, centuries before other known bronzes of the region.

The first, called Igbo Isaiah, was uncovered in 1938 by Isaiah Anozie, a local villager, who found the bronze works while digging beside his home. Five bronze artifacts from the original excavation are now in the British Museum's collection. They include a small staff, a head of a ram, a large manilla, an intricately designed crescent-shaped vessel and a small pendant in the shape of a local chief's head with scarification (ichi) marks on the face.

Formal excavations by the archaeologist Thurstan Shaw in 1959 at the request of the Nigerian government, resulted in the discovery of two other sites, Igbo Richard and Igbo Jonah, containing the remains of an ancient culture. Later, these were excavated as well. Artifacts have included jewelry, ceramics, a corpse adorned in what appears to be regalia, and many assorted bronze, copper, and iron objects. Some of these contain materials that are evidence of a long-distance trading system extending to Egypt.

Radiocarbon dating placed the sites to 850 AD, which would make the Igbo-Ukwu culture the earliest-known example of bronze casting in the region. The archaeological sites in southeastern Nigeria are associated with the Nri-Igbo. The three sites include Igbo Isaiah (a shrine), Igbo Richard (a burial chamber), and Igbo Jonah (a cache). Artifacts found in these sites have shown that by the 9th century AD, the Igbo-Ukwu people had established a complex religious system and an economy based on agriculture and trade with other African peoples as far as the Nile valley.

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  Igbo ukwu face pendant
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  Double egg pendant, leaded bronze, 9th-10th century, unearthed in Igbo Ukwu, Anambra
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  Shell Vessel with Leopard from Igbo-Ukwu
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  Igbo-ukwu bowl
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  Bronze pot, Igbo-Ukwu
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  Bronze ceremonial vessel in form of a snail shell, 9th century, Igbo-Ukwu
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  Igbo ukwu Vass
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  Bronze ornamental staff head, 9th century, Igbo-Ukwu
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  Intricate bronze ceremonial pot, 9th century, Igbo-Ukwu, Nigeria
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  Intricate ornamental staff head, 9th century, bronze, Igbo-Ukwu
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  Igbo ukwu bronzes
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  Igbo ukwu pendant
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  Glass beads from Igbo-Ukwu
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  Igbo-Ukwu textile
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  High priest
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  Cresentric bowl, bronze, 9th century, Igbo-Ukwu
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  Igbo Ukwu vessel

In Igbo-Ukwu, the dry season is muggy and partially cloudy, and the climate is warm all year round. The wet season is oppressive and overcast. The average annual temperature fluctuates between 64°F and 85°F, rarely falling below 56°F or rising over 88°F.

The difference in temperature in Igbo-Ukwu is so little throughout the year that talking about hot and cold seasons isn't really helpful.

• Kingdom of Nri

• Ehret, Christopher (2002). The civilizations of Africa: a history to 1800. James Currey Publishers. ISBN 0-85255-475-3.

6°01′N 7°01′E / 6.017°N 7.017°E / 6.017; 7.017