Nimrod (Hebrew: נמרוד, Nimrōḏ; Greek: Νεβρωδ, Nebrōḏ; Arabic: نمرود, Nimrūḏ; "Name means::rebellion") is described in Genesis 10:8-12 as a great hunter, warrior, and leader, who founded several cities in Mesopotamia, including Babylon, Uruk, Akkad, Kalneh, Shinar and possibly Nineveh.
Genesis 10:6-8 tells us that Ham's son Cush had two first-born sons: Raamah and Nimrod (both Cushites), Cush. However Nimrod is not listed in Cush's genealogy in Genesis 10:6 . This may indicate that another Cush is referred to in verse 8, or that Nimrod was descended from Cush via some generations that aren't listed (as was sometimes done in Biblical genealogies).
All of the sons listed in verse 6 settled in Africa, while Nimrod's kingdom is clearly in Mesopotamia. Raamah's territory was in Arabia and his two first-born sons were Dedan and Sheba. Nimrod's territory was in the Tigris-Euphrates region. The most likely explanation is that Nimrod was indeed a son of Cush, however due to some quarrel he became estranged. This estrangement also could explain Nimrod's exclusion from Genesis 10:6.
Some scholars have speculated that Nimrod was the Hebrew name for Sargon I of Akkad, a leader who came from western lands to establish a kingdom in Mesopotamia. However, Sargon is generally considered to be a Semite (a descendant of Shem), not a descendant of Ham via Cush, as Nimrod seems to be.