Southern Ontario faces growing flood risks that require evidence-based approaches to develop equitable flood information systems that adequately consider vulnerable and at-risk populations. This workshop sought to take stock of current flood data and information capabilities across our region, identifying gaps, pressing requirements, and key challenges. We will draw on leading international frameworks to examine how these might inform practitioners in Southern Ontario, as we develop this framework for an equitable flood data information system. Together, we explored what equitable flood information systems could look like and how to collaboratively create them, recognizing that current evidence-based approaches may inadvertently overlook at-risk populations. Attendees engaged in structured breakout discussions to develop a collaborative vision for more equitable flood data and information systems that serve both long-term adaptation planning and broader community resilience goals.