Postharvest losses substantially challenge global food security, particularly in low and middle income countries. Recognising the criticality of leveraging improved/new postharvest technology to address these losses, this study assesses the gap between available postharvest technologies and their awareness and use among farmers in Osun State. The study adopts a cross-sectional research design. With the assistance of the Agricultural Development Program officers in Osun state, a total of 126 farmers were randomly selected from the three agricultural zones in the state. The survey instrument was a structured questionnaire designed to investigate awareness, provisions, use, and challenges of postharvest technologies. The result revealed an increased awareness (34.7%) and use of improved storage technologies (mainly PICS and hermetic drums) over other technologies. Very few respondents are aware of ventilated plastic crates (5.5%), multi-crop dryer machines (4.5%), evaporating coolant systems (3.4%), and cold chain technology (3.0%). Moreover, high cost is a major hindrance, not only to adoption but also to the continuous use of some postharvest technologies. The substantial role of extension officers in providing and disseminating knowledge about new technology was evident. The study recommended strengthening extension services at all governance levels to create targeted awareness on lesser-known postharvest technologies such as ventilated plastic crates and multi crop dryers. Additionally, private and public sector-backed subsidies, microcredit facilities, and cooperative financing models should be introduced to address high costs and ensure sustained adoption of postharvest technologies.