Lucius Caflisch (born August 31, 1936) is a Swiss international law specialist.
Lucius Caflisch was a professor at the Graduate Institute of International Studies in Geneva.
He also acted as judge for the principality of Liechtenstein at the European Court of Human Rights between 1998 and 2006.
In 2006 Professor Caflisch was appointed to the Geneva-based United Nations International Law Commission.