Men who have sex with men are at increased risk of acquiring sexually transmitted infections. Although behavioral and contextual interventions have improved, infections are still spreading. A new focus is needed regarding the influence of sexual compulsivity and gender self-identification. The objective was to explore the relationship between SC and gender stereotype self-identification in MSM in Spain. A cross-sectional study based on an anonymous online survey of a sample of 881 MSM in Spain was performed. A validated Sexual Compulsivity Scale was applied as well as the Bem Sex Role Inventory to identify gender stereotype self-identification. A total of 87.5% of participants identified as gay, while 106 (12%) were sexually compulsive. The Bem Sex Role Inventory showed excellent reliability (0.92 Cronbach’s alpha). Gender stereotype classification showed the undifferentiated category as predominant (n = 325; 36.9%). The androgynous category had higher scores on the Sexual Compulsivity Scale, while the feminine category had lower scores (p < 0.007). Those identifying as androgynous scored higher overall on the Sexual Compulsivity Scale (15; p < 0.001; [12–20]) and subscales (“Interference of sexual behavior” (5; p < 0.001; [4–7]) and “Failure to control sexual impulses” (9; p = 0.014; [7–12])). Education level, cohabitation, sexual role, and unprotected sexual practices are related to sexual compulsivity according to different gender stereotypes. Sexual compulsivity is related to gender stereotype self-identification in men who have sex with men. Specific sociodemographic, behavior, and sexual profiles exist for those at greater risk of sexually transmitted infection dissemination. The undifferentiated category is at greater risk of engaging in unprotected practices. New avenues of prevention that include these findings could shift heteronormative standards to better understand current trends in the sexual health of men who have sex with men.