This paper evaluates the budget transparency of international organizations. Building on IMF, OECD, IPSAS, and Open Budget Survey standards for sovereign‐state budget transparency, we create a 93‐item budget transparency measure reflective of international organization characteristics. International organizations are important global dispensers of accumulated knowledge. This includes the purveying of advice on member state budget transparency. Despite this role, we find only partial budget transparency among our surveyed international organizations. Nonetheless, the international organization financial management and accountability practices were more transparent than their budget process or budget disclosures.