| Bon Ayr | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Kentucky#USA |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of Kentucky |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kentucky |
| Subdivision Type2: | County |
| Subdivision Name2: | Barren |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CST |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 768 |
| Coordinates: | 37.0244°N -86.0589°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 507546 |
Bon Ayr is an unincorporated community in Barren County, Kentucky, United States. It was also known as Bonayer.
Bon Ayr is located in west-central Barren County at the crossroads intersection of U.S. Route 68 (which runs concurrently with Kentucky Route 80) and Kentucky Route 255. It is located about 5.5miles west-northwest of Glasgow.[1]