["International Journal of Tourism Research, Volume 28, Issue 3, May/June 2026. ", "\nABSTRACT\nTourist pro‐environmental behaviour has garnered increasing scholarly attention in sustainability research. However, existing meta‐analyses on tourist pro‐environmental behaviour face key gaps, including fragmented antecedent categorisation, insufficient attention to intention‐behaviour distinctions, and limited moderator analyses. This meta‐analysis examined 216 correlation matrices from 85 studies to assess antecedents of tourists' pro‐environmental behavioural intentions and actual behaviours. We reorganised antecedents into four dimensions: Attitudinal Foundations, Contextual Triggers, Control Appraisals and Moral‐Normative Pressures, incorporating previously overlooked antecedents like past behaviours and engagement. Results identified biospheric values and personal norms (effect sizes ≥ 0.50) as the strongest predictors. Moderator analyses revealed variations across research contexts (hospitality vs. natural destinations vs. cultural destinations) and survey methods (online vs. on‐site). These findings advance theoretical understanding of tourists' pro‐environmental behaviour and inform targeted sustainability interventions in tourism.\n"]