Eumenes may refer to:

Eumenes of Cardia (c. 362 BC - 316 BC), a general and scholar in Ancient Greece Several members of the ruling Attalid dynasty of Pergamon Eumenes I (ruled 263 BC - 241 BC) Eumenes II (ruled 197 BC - 160 BC) Eumenes III (died 129 BC), illegitimate son of Eumenes II and pretender to the throne Eumenes, a late third century BC sculptor of the Pergamene school Eumenes of Bactria, an associate king of Antimachus I of Baktria Saint Eumenes, a 7th-century bishop of Gortyna Eumenes (wasp), a genus of potter wasps