Baccheius or Bacchius () is a Greek name and may refer to: Baccheius the Elder, writer on musical theory Bacchius of Tanagra, a commentator on the writings of Hippocrates Baccheius of Miletus, a writer. He wrote a work on agriculture. Bacchius, a gladiator Bacchius, grandfather of Justin Martyr Baccheius, an epithet of a wooden statue of Bacchus in Acrocorinth Baccheius, an epithet of Dionysus