Adelchis, also spelled Adelgis or Adalgis (, Adelgiso), is a masculine Germanic given name used among the Lombards. It may refer to: Adalgis (died 788), son of the king of Italy Adelchis of Benevento, reigned as prince 854–78 Adelchis I of Spoleto, reigned as duke 824–34
See also Adelchi (disambiguation) Adalgisa (disambiguation)