Saint Randoald (Rancald, Randaut) (†21 February 675) was prior of the Benedictine monastery of Grandval in the Moutier valley, under saint Germanus.
The abbot of Luxeuil, Saint Waldebert, sent Saint Germanus of Granfelden, who served 35 years as the first abbot, with Saint Randoald of Grandval as his prior.