The Sir James Rennell Memorial Award is a prestigious recognition instituted by the International Institute of River Affairs (IIRA) to honour outstanding contributions in the fields of river science, river governance, geography, cartography, river heritage, and sustainable water management. Named after Sir James Rennell, the pioneering geographer and surveyor whose work laid the foundation for the scientific understanding of India's river systems and landscapes, the award celebrates individuals and institutions that have advanced knowledge, innovation, research, and public engagement in river-related disciplines. The emblem of the award, featuring the portrait of Sir James Rennell alongside a flowing river motif, symbolises the enduring connection between geographical exploration, riverine knowledge, and the pursuit of sustainable river futures. Through this initiative, IIRA seeks to promote excellence in interdisciplinary river studies and foster global collaboration for the conservation and sustainable management of rivers and riverine ecosystems.