Since 1997, forest and land fires have occurred in the province of Riau (Handoko et al., 2021). Despite the government’s numerous efforts, forest and land fire suppression remains ineffective. This study aims to determine the influence of culture on the implementation of collaborative governance in controlling forest and land fires in Riau Province. The Ansell and Gash (2008) collaborative governance model was modified by including cultural and output variables. This quantitative study employs structural equation modelling (SEM) techniques and SmartPLS to assess hypotheses and analyze data. Data were gathered by distributing 150 questionnaires to multi-actors from five organizations active in controlling forest and land fires in Riau Province. The results showed that culture significantly influences the implementation of collaborative governance in controlling forest and land fires in Riau Province. Culture has a significant influence on building trust in collaboration. Furthermore, trust positively affects the output of collaboration, and output also influences the outcome of collaboration. However, facilitating leadership and institutional design do not significantly affect trust in collaboration in controlling forest and land fires in Riau Province.