Hardy is a city in Sharp and Fulton counties in the U.S. state of Arkansas. The population was 578 at the 2000 census.
Hardy is located at 36°19′14″N 91°28′50″W / 36.32056°N 91.48056°W / 36.32056; -91.48056 (36.320553, -91.480645).
The Spring River, which begins in Mammoth Spring, Arkansas, flows through Hardy. The Spring River flows into the Black River, which flows into the White River, and the White River eventually flows into the Mississippi River.