This publication explores the challenge of providing universal access to water and sanitation in fast-growing cities in Asia and the Pacific. It highlights the potential of well-managed public–private partnerships (PPPs) to help meet this challenge and discusses lessons from seven water sector PPPs in the region. It explains how countries can strengthen water governance, foster enabling environments, and design tailored strategies to promote successful PPPs. The report emphasizes that governments can work with the private sector to enhance value for money and provide equitable urban water and sanitation access that will help improve lives.