Dark Matter at accelerators, from MeV to TeV

Dark matter (DM) is believed to make up most of the matter of our Universe, but its particle origin remains a mystery. Thermal DM is a particularly motivated regime that can be realized by DM particles with a mass in the MeV - TeV range. Accelerator experiments have a unique role in exploring this regime. In this talk, we will highlight recent developments in phenomenological studies and give an overview of searches that can performed at various accelerator experiments, from high-energy colliders to meson factories and fixed target experiments.