This article presents the outcomes of a quasi-experimental community-based research intervention initiative targeting sexually transmitted infections (STIs) testing and condom use among Filipina female bar workers (FBWs). Established at the peer, organizational, and policy levels, bar managers and peer educators from 110 different establishments, in 4 southern Philippines regions, were trained. Only FBWs in the combination peer educator and manager training intervention condition significantly increased STI testing from baseline to follow-up. STI testing was significantly associated with higher HIV/AIDS knowledge, lower probability of contracting HIV, and increased condom use. Based on the findings, future research on the adaptability of this intervention to FBWs residing in HIV epicenters is warranted.