Heavener is a city in Le Flore County, Oklahoma, United States. It is part of the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area. The population was 3,414 at the 2010 census, an increase of 6.7 percent from 3,201 at the 2000 census. Heavener is notable for the Heavener Runestone just outside the city limits.
Joseph H. Heavener and some other white settlers arrived, secured permits to farm from the Choctaw Indians and settled down to farm. In 1880, Zachary Taylor Ward and his Choctaw Indian wife, Tabitha Hickman Ward, moved their store at Skullyville to the present site of Heavener. Ward died in 1883, and his widow, Tabitha, married Heavener. The couple owned the land on which the town was established. Prior to being named Heavener by a popular vote in 1895, the area was known by several different names, including Prairie of the Tall Grass, Choctaw City, Prairie View, Long Prairie, and Grand Prairie.
At the time of its founding, and through Oklahoma's statehood in 1907, Heavener was located in Sugar Loaf County, one of the counties making up the Moshulatubbee District of the Choctaw Nation.
Suitable agricultural land around Heavener attracted many farmers as settlers. Other improvements soon followed.