Gardiner is a town in the south-central part of Ulster County, New York, United States.

[3] Gardiner was created from parts of New Paltz, Rochester, and Denning by an act of the New York State Legislature on April 2, 1853.

It is farmed using a community-supported agriculture model, and the nonprofit mission is expressed largely through food-justice initiatives.

The Peter Aldrich Homestead, Bevier House, Brykill, Johannes Decker Farm, Gardiner School, Jenkins-DuBois Farm and Mill Site, John A. Lafevre House and School, Abraham and Maria LeFevre House, Locust Lawn Estate, Trapps Mountain Hamlet Historic District, and Tuthilltown Gristmill are listed on the National Register of Historic Places.

He also attended missions in Marlboro and Ireland Corners (an early name for Gardiner).

In 1884 this was made a separate mission with Wallkill and New Paltz attached under the care of an English priest, Rev.

The Wallkill River flows from south to north through the center of the town.

At the time of the 2000 census, there were 5,238 people, 1,997 households, and 1,389 families residing in the town.