Wallkill

Wallkill may refer to the following in the U.S. state of New York:


 * Wallkill, Orange County, New York, a town
 * Wallkill, Ulster County, New York, a hamlet and census-designated place
 * Wallkill Correctional Facility, in Ulster County
 * Wallkill River, a tributary of the Hudson River
 * Wallkill Valley, part of the Hudson Valley