The 1080s BC witnessed the early years of the Iron Age. Many of the great powers of the High Bronze Age in the Western Mediterranean had either collapsed or been severely weakened. It was during this time that previously minor powers, those being the Assyrian empire based in Mesopotamia and the Israelites and Phoenicians based in the Levant, began to emerge.
|Millennium:||2nd millennium BC|
|Centuries:||12th century BC – 11th century BC – 10th century BC|
|Decades:||1110s BC 1100s BC 1090s BC – 1080s BC – 1070s BC 1060s BC 1050s BC|
|Years:||1089 BC 1088 BC 1087 BC 1086 BC 1085 BC 1084 BC 1083 BC 1082 BC 1081 BC 1080 BC|
|Categories:||Births – Deaths – Architecture
Establishments – Disestablishments
Events and trends 
- Iron Age continues
- 1089 BC—Melanthus, legendary King of Athens, dies after a reign of 37 years and is succeeded by his son Codrus.
- Early 1080s BC- Herihor, the high-priest of Amon, usurps Ramesses XI's authority, becoming the de facto ruler of Upper Egypt.
- 1082 BC- Babylonia suffers from a severe famine. 
- c.1081 BC- Herihor dies.
- Transition from New Kingdom Period to Third Intermediate Period in Egypt begins.
Significant people 
- Tiglath-Pileser I, King of Assyria, r. c.1114–1076 BC
- Melanthus, Legendary King of Athens, r. c.1126–1089 BC.
- Codrus, Legendary King of Athens, r. c.1089–1068 BC
- Marduk-nadin-ahhe, King of Babylon, r. 1100–1082 BC
- Marduk-shapik-zeri, King of Babylon, r. 1082–1069 BC
- Di Yi, Shang dynasty king of China, r. c.1101–1076 BC
- Ramesses XI, Pharaoh of Egypt, r. 1107–1077 BC
- Herihor, High priest of Amon
- Eli, Judge of Ancient Israel