The 2015 Cal Poly Mustangs men's soccer team represented the California Polytechnic State University during the 2015 NCAA Division I men's soccer season. The Mustangs were led by head coach Steve Sampson, in his first season at the helm. They played all home games at Alex G. Spanos Stadium.
|- !colspan=6 style=""| Exhibition
|- !colspan=6 style=""| Regular season
|- !colspan=6 style=""| <span style="color:#FFFFFF;">Big West Tournament</span>
|- !colspan=6 style=""| <span style="color:#FFFFFF;">NCAA Tournament</span>