Odo II may refer to
Odo II of Troyes (9th century) Odo II, Count of Orléans (c. 852–898) Odo II of Blois (983–1037) Odo II, Margrave of the Saxon Ostmark (d. 1046) Odo of Champagne (c. 1040 – 1115) Odo II of Beauvais (died 1144), bishop Odo II, Duke of Brittany since 1148 Odo II of Burgundy (1118–1162) Odo II of Champlitte (died in 1204)