Computational Complexity Conference: Annual conference that deals with computational complexity broadly defined.
IEEE Symposium on Logic in Computer Science: The LICS Symposium is an annual international forum on theoretical and practical topics in computer science that relate to logic in a broad sense.
Midwest Theory Day: Held twice a year, usually on a Saturday in December and on a Saturday in April. Details of past and future meetings.
SIGACT News Theory Calendar: Calendar of upcoming theoretical computer science events and a list of recently released books in the field.
STOC: ACM Symposium on Theory of Computing.
Theoretical Computer Science Conferences & Journals: Conference calls for papers, conference and workshop programs, journal calls for papers.