This study aims to identify and evaluate the perception of major stakeholders on factors causing International Development Project (IDP) failure in the context of Afghanistan. The study adopts a quantitative cross-sectional survey research design. Thirty significant IDP failure factors included in the questionnaire were identified and shortlisted through literature reviews and validated by experts and IDP management practitioners. The survey was conducted using a structured questionnaire to investigate the most significant IDP failure factors, and various statistical tools were employed to evaluate the perception of the survey respondents. RII was used to examine the relative importance index of each failure factor. The failure factors were then grouped into five categories: Financial constraints, Ineffective recruitment, External forces, Project leadership, and Project management practices using EFA. The findings of the study will help the international development community and their IDP implementing partners, INGs and project management practitioners manage IDPs proactively and mitigate the risks of project failure. It will also contribute to the IDP management body of knowledge. The research is the first of its kind to examine the possible factors causing IDP failure in Afghanistan.