Bucephalus or Bucephalas (c. 355 BC – June 326 BC) was the horse of Alexander the Great, and one of the most famous actual horses of antiquity.

Bucephalus was named after a branding mark depicting an ox's head on his haunch.

Ancient accounts from Plato's Lives state that Bucephalus died after the Battle of the Hydaspes in 326 BC,at the age of 30, in what is now modern Pakistan, and is buried in Jalalpur Sharif outside of Jhelum, Pakistan. Another account states that Bucephalus is buried in Phalia, a town in Pakistan's Mandi Bahauddin District, which is named after him.

Some legends say that Alexander and Bucephalus were born on the same day.

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