The Mound Builders were members of various indigenous North American cultures who constructed earthwork mounds. Mound builder or mound builders may refer to: Southwestern Moundbuilders, athletic teams representing Southwestern College Mound-builder (bird), or Megapode, birds in the family Megapodiidae Mound-building termites, a group of termite species that live in mounds Mound-building mouse or steppe mouse, a species of rodent