The Amalekites were a people or nation in the Bible.
After the Amalekites attacked the Israelites, the LORD commanded Moses to kill everyone of them (including women, children and infants). Many Bible scholars concur that the Israelites thought this to be a just act. However it remains controversial due to its genocidal nature.
Like other tribes such as the Edomites, the Amalekites were named after a man, Amalek, from whom they were believed to be descended. However, they are more likely associated with the Ammonites and Canaanites. Their name is sometimes translated as "people of the valleys," but some biblical scholars do not agree with this translation.