Adolph I may refer to:
Adolf, King of Germany (c. 1255–1298), King of Germany from 1292 until 1298 Adolph I, Count of Nassau-Wiesbaden-Idstein (1307–1370) Adolph I, Duke of Cleves (1373–1448) Adolph I, Prince of Anhalt-Köthen (died 1473) Adolf I, Count of the Mark (c. 1194–1249) Adolf Frederick I, Duke of Mecklenburg (1588–1658)
See also
Adolf I (disambiguation)