Erluin II was the third abbot of Gembloux from 991 until his death. He was a nephew of Bishop Erluin of Cambrai and a relative of the first two abbots of Gembloux, Erluin I and Heriward. The Auctarium Gemblacense, a continuation of the chronicle of Sigebert of Gembloux, calls him Erluinus iunior, Erluin the younger.