Adolf II of Lotharingia (c. 1002–1041) was count in Keldachgau and Vogt of Deutz, and was the son of Adolf I of Lotharingia, count in Keldachgau, Vogt of Deutz.
He left two sons: His ancestor Herman II lord of Saffenberg is supposedly the son of Herman I of Lothringen and his brother is Steffan Saffenberg (abbot of Prüm 993-1001).