Adolf I

Adolf I may refer to:


 * Adolf I of Lotharingia (died 1018), Vogt of Deutz
 * Adolf I of Berg (died 1086)
 * Adolf I of Holstein (died 1130), Count of Schauenburg
 * Adolf I, Archbishop of Cologne or Adolf of Altena or Adolf of Berg (c. 1157–1220)
 * Adolf I, Count of the Mark (1194–1249)
 * Adolf I, Prince of Schaumburg-Lippe (1817–1893)
 * Adolf I of Luxembourg (1817–1905)
 * Adolf Frederick I, Duke of Mecklenburg (1588–1658)