| Official Name: | Arpelar, Oklahoma |
| Settlement Type: | Unincorporated community and Census designated place |
| Pushpin Map: | Oklahoma#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Oklahoma |
| Subdivision Type2: | County |
| Subdivision Name2: | Pittsburg |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 5.77 |
| Area Land Km2: | 5.77 |
| Area Water Km2: | 0.01 |
| Area Total Sq Mi: | 2.23 |
| Area Land Sq Mi: | 2.23 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 291 |
| Population Density Km2: | 50.48 |
| Population Density Sq Mi: | 130.73 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 735 |
| Coordinates: | 34.9356°N -95.9589°W |
| Area Codes: | 918 & 539 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2629904 |
Arpelar is an unincorporated community and census-designated place in Pittsburg County, Oklahoma, United States. Its population was 291 as of the 2020 census.[2] U.S. Route 270 and Oklahoma State Highway 1 pass through the community.
Arpelar was named after Aaron Arpelar, a county judge of Tobucksy County in the Choctaw Nation. At the time of its founding, Arpelar was located in Tobucksy County. A post office was established at Arpelar, Indian Territory on February 25, 1903. It closed on June 30, 1934.[3]
According to the U.S. Census Bureau, the community has an area of ; of its area is land, and is water.[2]