Approximately one in five men struggle with mental health challenges each year; however, men often experience unique barriers that prevent them from seeking help or accessing treatment. The COVID-19 pandemic has placed additional pressure on many men and efforts are urgently needed to tailor services and norm men’s mental health help-seeking. While asking for help may be viewed by some men as a sign of weakness, helping others is often perceived as a strength that aligns with masculine ideals. By emphasizing the benefits of mutual help, it may be possible to equip men with the skills and confidence to support other men’s mental health challenges, as well as their own. The aims of this research are to explore men’s mutual help for mental health challenges and develop an online intervention to promote mental health and social connection through shared activities (e.g. physical activity). We will conduct interviews with Canadian men and use the findings to inform the development of the e-intervention. Men will be recruited to test the intervention and provide feedback. Findings will provide important information about men’s mutual help for mental health challenges and opportunities to norm mental health promotion.