5th International Conference on Santayana: The Life of Reason in the Age of Terrorism, Berlin, Germany. July 12-14, 2016. (Preceded by A Student Seminars Day on July 11.)
Fourth International Congress on George Santayana, 30–31 October 2012, Rome, Italy
Third International Congress on George Santayana, 16–18 November 2009, Museo Valenciano de la Modernidad (MuVIM), Valencia, Spain
Second International Congress on George Santayana, 20–24 June 2006, Opole University, Poland. Organized by Chris Skowronski, Opole University
Towards a Philosophy of Modesty: Freedom, Reason, and Limit in Santayana’s Moral and Political Thought, 1–4 December 2005, Cambridge, UK. Sponsored by the Liberty Fund and organized by Noel O’Sullivan, University of Hull
First International Congress on George Santayana, 27–30 May 1992, Avíla, Spain
See also this page devoted to meetings of the George Santayana Society.