The Ethiopian Highlands are characterized by a diverse range of agricultural practices, with varying levels of adoption of climate-smart agriculture (CSA). Understanding these dynamics is crucial for developing effective strategies to mitigate climate change impacts on food security and livelihoods. The research employs a mixed-methods approach combining quantitative surveys with qualitative interviews to gather data from 200 randomly selected households spread across five distinct farming communities in the region. Data analysis includes descriptive statistics and thematic content analysis. A notable finding is that smallholder farmers who received training on CSA techniques were more likely to adopt these practices (75% vs. 45%, p < 0.05). Additionally, households with access to improved seeds showed higher adoption rates compared to those without (82% vs. 61%). The study underscores the importance of targeted training and seed distribution in enhancing CSA adoption among Ethiopian smallholder farmers. Policy recommendations include increasing investment in farmer education programmes and improving access to high-quality seeds, which are essential for scaling up CSA practices across the region.