Blucium or Bloukion (Ancient Greek: Βλούκιον) was a fortress of the Tolistoboii in ancient Galatia. It was the residence of Deiotarus, in defence of whom Cicero made an oration, addressed to the Dictator Caesar. In the text of Cicero, the name is read Luceium, and, accordingly, some translators amend Strabo by writing Λούκειον.
- Strabo. Geographica. Vol. xii. p. 567. Page numbers refer to those of Isaac Casaubon's edition.
- Cicero, pro Reg. Deiot. 6, 7, ed. Orelli.
- Richard Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World. Princeton University Press. p. 86, and directory notes accompanying.
- Lund University. Digital Atlas of the Roman Empire.