Putnam Transit or Putnam Area Rapid Transit (PART) is the provider of bus transit in Putnam County, New York. An agency of the Putnam County government, Putnam Transit came into service in the mid-1970s as a startup system in the wake of growing suburbanization of Putnam County and rising gas prices.

Putnam County is a county located in the U.S. state of New York. As of the 2020 census, the population was 97,668. The county seat is Carmel, located within one of six towns comprising the county. The county is part of the Hudson Valley region of the state.