This publication contains the in-depth review on social cohesion prepared by Statistics Canada for the Bureau of the Conference of European Statisticians in February 2023. The publication identifies definitions and concepts related to social cohesion, specifically for the purposes of national statistical offices, and covers ongoing debates on defining social cohesion and its multidimensional nature. The document concludes that national statistical offices can benefit from approaches that satisfy their specific context and should avoid an overly encompassing definition of social cohesion that can undermine its analytical value. The review provides implications for the operationalisation of the concept by national statistical organisations and outlines a number of methodological priorities. The Conference of European Statisticians endorsed the outcome of the in-depth review in June 2023 and supported the work of a task team to collect information on how the concept of social cohesion is measured in different countries and to identify good practices.