The New York City Police Department (NYPD), officially the City of New York Police Department, is the primary municipal law enforcement agency within the City of New York. Established on May 23, 1845, the NYPD is the largest, and one of the oldest, municipal police departments in the United States.

The NYPD is headquartered at 1 Police Plaza, located on Park Row in Lower Manhattan near City Hall. The NYPD's regulations are compiled in title 38 of the New York City Rules. The NYC Transit Police and NYC Housing Authority Police Department were fully integrated into the NYPD in 1995. Dedicated units of the NYPD include the Emergency Service Unit, K-9, harbor patrol, highway patrol, air support, bomb squad, counterterrorism, criminal intelligence, anti-organized crime, narcotics, mounted patrol, public transportation, and public housing units.

The NYPD employs over 50,000 people, including more than 35,000 uniformed officers. According to the official CompStat database, the NYPD responded to nearly 500,000 reports of crime and made over 200,000 arrests during 2019. In 2020, it had a budget of US$6 billion. However, the NYPD's actual spending often exceeds its budget.

The NYPD has a history of police brutality, corruption, and misconduct, which critics argue persists into the present day.

Due to its high-profile location in the largest city and media center in the U.S., fictionalized versions of the NYPD and its officers have frequently been portrayed in novels, radio, television, motion pictures, and video games.