Benjamin Jourdain and Tony Lelièvre are two of the co-organizers of the 14th international conference on Monte Carlo Methods and applications (MCM 2023), together with Stéphanie Allassonnière, Jean-François Chassagneux, Florence Forbes, Emmanuel Gobet and Gilles Pagès. This biennial event is one of the most prominent conference series devoted to research on the mathematical aspects of stochastic simulation and Monte Carlo methods. The 2023 session is organized on the Jussieu campus of Sorbonne Université, and gathers about 240 participants from 23 countries. In view of CO2 emissions compensation, some funding was devoted to the planting of trees in an area where biodiversity is threatened. The event is supported by various institutions and privately and publicly funded research programs, including Ecole des Ponts, Labex Bézout, the financial risks chair, and Inria Paris.