The Australasian Heat and Mass Transfer Conference, primarily supported by the Australasian Fluid and Thermal Engineering Society (ASFTES), an authorised society of Engineers Australia, is the longest-running specialised forum in thermal sciences in the region, with a history dating back to 1973. All papers included in this volume have undergone a rigorous blind peer-review process, ensuring both technical quality and editorial suitability. The selected contributions cover a broad range of contemporary topics, including experimental methods, computational fluid dynamics (CFD), natural convection, nanofluids, multiphase flow, mass diffusion, and electrohydrodynamic (EDH). This proceedings volume contributes to a formal archival publication in the AHMTC series and serves as an official compendium for the conference. It is intended for researchers, practitioners, and postgraduate students, working in heat transfer, fluid mechanics, and related thermal-science disciplines.