The surname Ellis has a long history, originating from the Old English name “Ælfgar”. It was a popular given name in medieval times, and eventually evolved into a surname. The name is often associated with Welsh and English heritage, and has many famous bearers, including Ellis Island founder Samuel Ellis and musician Ellis Paul. The name’s meaning is uncertain, but it is thought to have originated from the elements “ælf”, meaning elf, and “gar”, meaning spear.