Data and datasets are often described as a core strategic asset for Aotearoa New Zealand (Aotearoa) and indispensable for the government’s ambition of being a small nation with an advanced, adaptive, and inclusive economy. In the context of our research, science and innovation (RSI) ecosystem, the value of data cannot be overstated. The purpose of this report is to provide a review (the Review) of Aotearoa’s research data landscape. Research data are data that are used as primary sources to support technical or scientific enquiry, research, or artistic activity; as evidence in the research process; and/or are commonly accepted in the research community as necessary to provide a foundation for, or validate research findings and results. The Review covers four core areas: • Te Tiriti o Waitangi and data sovereignty • research data ecosystems • research data infrastructure • research data cultures. Although informed by international data landscape reviews, this Review emphasises the unique considerations and structural features of the Aotearoa data landscape. Based on our analysis and observations from a series of targeted workshops, we provide a set of recommendations on how to strengthen the system and advance shared aspirations for better outcomes. The recommendations are organised under the five headings from Nosek’s Pyramid of Social Change, setting out a phased strategy for culture and behaviour change. In implementing these recommendations, we recognise that the articles of Te Tiriti should be embedded throughout, consistent with sector requirements (MBIE, 2023d).