The OECD Infrastructure Governance Indicators (IGIs) are intended to support and monitor the implementation of the OECD Recommendation on the Governance of Infrastructure(hereafter “the Recommendation”), adopted by the OECD Council on 17 July 2020 (OECD, 2020[1]). The Recommendation is based on 10 pillars that relate to how governments plan, prioritise, fund, budget, deliver, operate and monitor infrastructure assets. It presents a whole-of-government approach, covering the entire life cycle of infrastructure projects and placing special emphasis on regional, gender, resilience, environmental perspectives and the gender perspective. The overarching nature of the Recommendation’s pillars allows for exhaustive analysis of the multiple governance dimensions that are at play in infrastructure planning, decision making and delivery. They therefore provide a robust conceptual framework for the development of the IGIs. The pillars represent both conceptual categories and functional areas of work. As such, the pillars are not standalone entities and interact with one another to support a comprehensive overview of infrastructure governance.