| Official Name: | Township of Prairie |
| Settlement Type: | Township |
| Image Map1: | Map of Arkansas highlighting Washington County.svg |
| Mapsize1: | 200px |
| Map Caption1: | Location of Washington County in Arkansas |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Washington |
| Established Title: | Established |
| Established Date: | 1829[1] |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 29.8 |
| Area Land Sq Mi: | 29.7 |
| Area Water Sq Mi: | 0.1 |
| Population As Of: | 2000 |
| Population Total: | 3526 |
| Population Density Sq Mi: | 119 |
| Elevation Ft: | 1335 |
| Coordinates: | 36.0861°N -94.1378°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Area Code: | 479 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 69797 |
Prairie Township is one of 37 townships in Washington County, Arkansas, United States.[2] As of the 2000 census, its total population was 3,526.
According to the United States Census Bureau, Morrow Township covers an area of 29.8sqmi, with 29.7miles being land and the remaining 0.1miles being water.[2] The township has been fragmented by the expansion of Fayetteville and thus Fayetteville Township. Prairie now consists of two main segments along Fayetteville's eastern edge and three very small segments on Fayetteville's west side.
The township gave part to Reed Township in 1880 and part to Wyman Township between 1890 and 1900.
The township contains Hester Cemetery and St. Joseph Cemetery.