Ingulf was an 11th-century Benedictine abbot of Crowland (Croyland).
Ingulf (also Ingulph; Anglo-Saxon Ingwulf, Old Norse Ingólfr) is a Germanic given name (from Ing, a theonym, and ulf "wolf"); besides the Crowland abbot, it may also refer to: Pseudo-Ingulf, the Croyland chronicle formerly associated with the abbot Ingulph, a 12th-century Abbot of Abingdon Ingólfr Arnarson, 9th-century settler of Iceland Ingulf the Mad, title of a 1989 fantasy novel and its eponymous main character