This study investigated the level of knowledge, attitudes and practice towards media campaigns against gender-based violence among adults in Southwest Nigeria. The researcher used a mixed methods approach comprising a survey and key informant interview. The researcher used a mixed methods approach consisting of a survey and key informant interviews to gain quantitative and qualitative insight into the study. The study findings showed that media campaigns have been effective in raising awareness about GBV, with a significant positive relationship between exposure to media campaigns and perceived awareness (r=0.741; p< 0.01), knowledge (r=0.812; p<0.01), and attitudes (r=0.856; p<0.01) towards GBV. The findings from qualitative data confirmed quantitative data by highlighting the importance of opinion leaders and community based initiatives in disseminating information and promoting attitude change. The study thus concluded that media campaigns effectively create awareness about GBV. Hence, the study recommended a multichannel approach to campaigns using traditional and digital media to reach a wider audience. Therefore, more opinion leaders should be engaged in interpreting and disseminating information on GBV to their social networks. There is also a need to increase support services such as counselling, legal aid and shelter for victims and complainants.