Belus in Latin or Belos in accurate Greek transliteration is one of:

Persons

• Ba‘al: a title ("lord") in northwest Semitic languages, often applied to particular gods.
  
  
• Bel: a title ("lord") in Akkadian, especially applied to the Babylonian god Marduk but also used of other gods.
  
  
• Belus (Babylonian): the Greek Zeus Belos and Latin Jupiter Belus as translations of the Babylonian god Bel Marduk or an euhemerized version of that god.
  
  
• Belus (Assyrian): an ancient king of Assyria in classical, legendary history on the edge of Greek mythology.
  
  
• Belus (Egyptian) (sometimes called Belus I): in Greek mythology the son of Poseidon by Libya, King of Egypt, and father of the eponymous Aegyptus and Danaus.
  
  
• Belus II. See Dido. In Virgil's Aeneid (and some later works) he is king of Tyre and father of Dido, Pygmalion of Tyre, and Anna. As such this Belus is to be equated with the historical King Matan I of Tyre.
  
  
• Belus (Lydian). See Omphale. He was a grandson of Heracles and ancestor of the Heraclid dynasty in Lydia according to Herodotus.
  
  

River

• Belus (river), a river in Israel.