The 14th Athens Colloquium on Algorithms and Complexity (ACAC 2019) took place on August 22-23, 2019, at the Multimedia Amphitheater of the NTUA Central Library, hosted by the Computation and Reasoning Laboratory (CoReLab) of the School of Electrical and Computer Engineering of the National Technical University of Athens.

ACAC is an annual meeting aiming to bring together researchers working in all areas of the theory of algorithms and computational complexity. Since 2006 the event has taken place every year.

This year the event was attended by more than 100 participants, comprising undergraduate and postgraduate students, as well as researchers and professors from Greek and foreign institutions, many of which presented their recent work at the conference.

Plenary talks were delivered by professors Evangelos Kranakis (Carleton University, Canada), Paul Spirakis (University of Liverpool, UK, and University of Patras, Greece), and Christos Zaroliagis (University of Patras and CTI, Greece).