Hermann II (born 1049; died Dalhem, 20 September 1085), Count Palatine of Lotharingia from 1064 when reaching majority, until 1085. He was count in the Ruhrgau and the Zulpichgau, as well as count of Brabant.
According to Egon Kimpen he was the son of Henry I of Lotharingia († 1061) and Mathild of Verdun († 1060), daughter of Gozelo I of Lotharingia, however this statement is consider as based on miserable conditions.
In 1080 he married Adelheid of Orlamunde-Weimar († 1100), widow of Adalbert II of Ballenstedt. She was a daughter of Otto of Orlamünde, count of Weimar and margrave of Meissen in Thuringia, and Adela of Brabant. Together they had two children who died already in 1085.
He is assumed to be the last Count Palatine of Lotharingia out of the Ezzonian dynasty. He was killed in a duel with Albert III, Count of Namur, nearby Hermans castle in Dalhem (County of Limburg).
His widow married (3rd) with Henry of Laach, count in the Mayfeldgau, and who became the first count palatine of the Rhine between 1085/1087.