[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Sexualization has been posited to be a part of a larger process of socialization with negative implications (APA, 2010; Ward, 2016). Recent reviews of gender-based violence and exploitation have focused on important elements that highlight the impact of the pervasive experiences of sexual objectification and sexual commodification on women and girls, but relatively limited literature has explored domains of men's sexualizing behaviors. Using the theoretical domains outlined in the APA Task Force Report on the Sexualization of Girls (APA, 2010), the present study developed and validated a measure of men's sexualizing behaviors toward women (MSBWS) on a sample of 308 adult males (ages 18-34). Using exploratory factor analysis, results indicated three-factors that defined the MSBWS: Covert, Commodified, and Overt Sexualization. Analyses also revealed the MSBWS to have high reliability for the overall scale as well as the three subscales. Evidence for construct validity was revealed in significant correlations with all criterion variables (e.g., attitudes of sexual objectification, traditional masculinity and sexual aggression) and suggest broad implications that men's sexualizing behaviors is a measurable construct. Future research may further validate the MSBWS using confirmatory factor analysis on independent samples and examine relevant variables of the possible harm of sexualizing behaviors.