Sexual harassment bystander intervention (SHBI) has been deemed critical to addressing persistent incidents in the workplace, yet scholarly knowledge of this behavior remains sporadic and limited. To move this field of research forward, the present study departs from the traditional variable-centered approach and instead adopts a latent profile approach to answer three key questions: (1) Which combinations (profiles) of actions do bystanders take to intervene? (2) When do bystanders intervene with specific profiles of SHBI? and (3) What happens when bystanders intervene with different behavioral combinations? We first developed and validated a scale to measure five distinct SHBI behaviors (i.e., confronting, distracting, supporting, reporting, and discussing) with two scenario-based pilot studies. Then, using this scale and latent profile analysis, we identified three distinctive profiles (i.e., active intervention, low-risk intervention, and no/limited intervention) in a field survey study (