Project Safe Neighborhoods (PSN) is a nationwide initiative to reduce gun and gang crime in the United States at the local level. The core of PSN involves the funding of local programs coupled with increased federal prosecution of illegal gun use and possession. Since its inception in 2001, over $2 billion has been committed to this initiative. This funding has been and continues to be used to hire new federal and state prosecutors, support investigators, provide training, deter juvenile gun crime, and develop and promote community outreach efforts, as well as to support other gun crime and gang violence reduction strategies.

Each year, the 94 U.S. Attorney districts are eligible to apply for PSN grants to develop and sustain the 5 core elements of PSN. This includes leadership from the United States Attorney, partnerships with local and state agencies, targeted and prioritized enforcement, local prevention and offender reentry programs that can help prevent violent crime, and accountability by measuring outcomes.