Amulius

thumb|Miniature from the Constantine Manasses portraying Amulius' rape of his niece Ilia (14th century) In Roman mythology, Amulius () was king of Alba Longa who ordered the death of his infant, twin grandnephews Romulus, the eventual founder and king of Rome, and Remus. He was deposed and killed by them after they survived and grew to adulthood.

He is the brother and usurper of Numitor and son of Procas. He was said to have reigned 41 years before his death (793–752 BC). His brother had been king, but Amulius overthrew him, killed his son, and took the throne. He forced Rhea Silvia, Numitor's daughter, to become a Vestal Virgin, a priestess of Vesta, so that she would never bear any sons that might overthrow him. However, she was raped or seduced by the god Mars, resulting in the birth of the twins. Rhea was thrown into prison and her sons ordered to be thrown into the river Tiber. The twins washed up onto dry land and were found by a she-wolf who suckled them. Later their mother was saved by the river god Tiberinus who ended up marrying her. Romulus and Remus went on to found Rome and overthrow Amulius, reinstating their grandfather Numitor as king of Alba Longa.