The name Anum has its origins in ancient Mesopotamia, specifically in the Sumerian and Akkadian civilizations that flourished in the region between the Tigris and Euphrates rivers from around 3500 BC to 600 BC. It is derived from the Sumerian word "an," meaning "heaven" or "sky," and the suffix "-um," which was a common grammatical element used in Sumerian and Akkadian names.

One of the earliest recorded instances of the name Anum is found in the Sumerian King List, an ancient text that lists the kings who ruled over the various city-states of Sumer. The name Anum is mentioned as the name of a king who reigned in the city of Uruk, although the exact dates of his reign are uncertain.

In Mesopotamian mythology, Anum was also the name of the supreme deity in the Akkadian pantheon. Anum was considered the father of the gods and was associated with the celestial realm, often depicted wearing a horned cap symbolizing his authority over the heavens.

One of the most famous historical figures bearing the name Anum was Anum-hirbi, a king of the Akkadian city-state of Lagash who ruled around 2350 BC. He is known for commissioning the construction of several significant temples and for his military campaigns against neighboring city-states.

Another notable figure named Anum was Anum-pîr-nahhunte, a high-ranking official and military commander who served under the Assyrian king Ashurbanipal in the 7th century BC. He is mentioned in several ancient Assyrian inscriptions for his role in military campaigns and administrative duties.

In the field of ancient Near Eastern studies, the name Anum is also associated with the renowned archaeologist and Assyriologist Anum-hirbi Gelb (1907-1995). Gelb made significant contributions to the understanding of ancient Mesopotamian languages and writing systems, particularly cuneiform script.

Throughout history, the name Anum has also been used by various individuals from different cultural backgrounds, although its usage has been relatively uncommon compared to other names of Mesopotamian origin. Some examples include Anum Singh, a 17th-century Indian warrior and military commander, and Anum Qudoos, a contemporary Pakistani artist and writer.