O'Kean
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 1.02
- State:
- Arkansas
O'Kean is a town located in Greene County, Arkansas. O'Kean has a 2026 population of 196. O'Kean is currently declining at a rate of 0% annually and its population has increased by 1.55% since the most recent census, which recorded a population of 193 in 2020.
The median age in O'Kean is 41.6 years: 45 years for males, and 29.9 years for females. For every 100 females there are 84.9 males.