Eberhard von Sülichen (c. 856[1] – after 889)[2] was a Frankish nobleman, Count of Sülichgau.
It has been reported that he was the son of Unruoch III of Friuli, the Margrave of Friuli, a son of the Frankish Unruoching Duke of Friuli Eberhard of Friuli and of Gisela, daughter of Louis the Pious.
[3] It has also been reported that his father was Adelhard von Burc, lay abbot of Cysoing, himself a son of Eberhard of Friuli.
[4] He married his first cousin, Gisela, and they had at least two daughters, Judith (who married Arnulf, Duke of Bavaria, and was the mother of Eberhard and Judith.
[2]) and Regelinda of Zürich, Duchess of Swabia.