Identifying rape myths among criminal justice and medical professionals is central to preventing secondary victimization. We present the first preliminary Danish validation of McMahon and Farmer’s updated Illinois Rape Myth Acceptance scale using samples of police and medical trainees. Exploratory and confirmatory factor analyses result in a 14-item, four-factor measure that demonstrates acceptable model fit, satisfactory convergent and discriminant validity, and good internal consistency. Although reported rape myth acceptance is generally low in both samples, some subscale scores vary across professional groups, thereby identifying specific targets for intervention in different occupational contexts. Further tests of the scale are recommended.