The 41st International Association for Hydro-Environment Engineering and Research (IAHR) World Congress, themed “Innovative Water Engineering for Sustainable Development,” is scheduled to take place from June 22-27, 2025, at the Singapore EXPO. This event will serve as a crucial platform for global experts, researchers, and practitioners to exchange innovative solutions and advanced knowledge focused on addressing the multifaceted challenges of water resources management, climate change adaptation, and the interconnections of water, energy, food security, and environmental sustainability. Alongside the Singapore International Water Week (SIWW) Spotlight 2025, IAHR2025 will explore cutting-edge approaches in water engineering to enhance resilience and support the Sustainable Development Goals in various environments.