The British Colloquium for Theoretical Computer Science (BCTCS) is an annual event for UK-based researchers in theoretical computer science. A central aspect of BCTCS is the training of PhD students, providing an environment for students to gain experience in presenting their work, to broaden their outlook on the subject, and to benefit from contact with established researchers.

The next meeting of the BCTCS will take place at Durham University from 15-17 April 2019.

The most recent meeting of the BCTCS took place at Royal Holloway, University of London between 26-28 March 2018.