| Official Name: | Ascalon, Missouri |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Missouri |
| Pushpin Label: | Ascalon |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Missouri |
| Subdivision Type2: | County |
| Subdivision Name2: | St. Louis |
| Timezone: | Central (CST) |
| Utc Offset: | −6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | −5 |
| Postal Code Type: | ZIP code |
| Postal Code: | 63043 |
| Area Code: | 314 |
| Blank Name: | GNIS feature ID |
Ascalon is an unincorporated community in St. Louis County, Missouri, United States located just south of St. Ann. It sits at an elevation of 656 feet (200 m).