Adelina de Savigny was a 12th-century Benedictine nun and abbess from Normandy. Born around 1099, she was the sister of Saint Vitalis, the founder of the Savigny monastic order. Following her brother's establishment of the Abbaye Blanche in Mortain, she served as the community's first leader. Under her guidance, the nuns practiced a rigorous version of the Rule of Saint Benedict while wearing habits made of undyed wool.