Eberhard I may refer to:
Eberhard I of Friuli (c. 815–867) Eberhard I, Count of Bonngau (fl. 904–937) Eberhard I, Count of Berg-Altena (1140–1180) Eberhard I (archbishop of Salzburg) (fl. 1147–1164) Eberhard I, Count of the Mark (c. 1255–1308) Eberhard I, Count of Württemberg (1265–1325) Eberhard I, Duke of Württemberg (1445–1496)
See also Eberhard