<![CDATA[Organic waste management remains a major challenge in urban areas of Indonesia, including Pekanbaru City, Riau Province, where food and vegetable waste dominates daily waste generation. Although various waste reduction programs have been implemented, the level of community participation in organic waste management remains relatively low and is not yet fully supported by adequate infrastructure and sustainable policies. This study aimed to analyze factors associated with community participation in vegetable organic waste management and to identify the most dominant determinants influencing such participation. This study employed a quantitative design with an analytical survey approach in three sub-districts with the highest waste generation in Pekanbaru City. The study sample consisted of 399 households and 30 market vendors selected through random sampling. Data were collected using structured questionnaires and analyzed using Chi-square tests and multiple logistic regression. Bivariate analysis showed that knowledge, availability of facilities and infrastructure, social support and policies, and community actions were significantly associated with community participation, while attitudes showed no significant relationship. Multivariate analysis revealed that social support and policies were the most dominant determinants in increasing the likelihood of community participation, followed by community actions. Conversely, certain levels of knowledge had a negative and significant effect on participation, indicating the presence of a knowledge–action gap. Based on these findings, strengthening local waste management policies should focus on enhancing social support, ensuring policy consistency, providing adequate infrastructure, and encouraging concrete community actions to achieve sustainable participation in organic waste management.]]>
