The NARIT COMputational Astrophysics and Cosmology (NARIT COMAC) Workshop “N-body and Hydrodynamic Simulations of Galaxies and Large-Scale Structure” will be held between November 21st and 25th in Chiang Mai, Thailand, organized by the National Astronomical Research Institute of Thailand (NARIT) under the auspices of UNESCO. NARIT has recently been assigned as an UNESCO International Training Centre in Astronomy with one of its main missions being the fostering of astronomy teaching and research in Southeast Asia.