| Marengo, Pennsylvania | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Label: | Marengo City |
| Pushpin Map Caption: | Location within the U.S. state of Pennsylvania |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Centre |
| Subdivision Type3: | Township |
| Subdivision Name3: | Ferguson |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1,129 |
| Coordinates: | 40.7312°N -78.0311°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1180398 |
Marengo (also Marengo City)[1] is a hamlet and an unincorporated community in Ferguson Township, Centre County, Pennsylvania, United States. It is part of Happy Valley and the larger Nittany Valley. The hamlet follows Halfmoon creek through a gap in the Gatesburg Ridge. Marengo is south of Loveville, Halfmoon Township, southwest of Gatesburg, northwest of Baileyville, and east of Huntingdon County.
The Marengo School was in use circa 1880.[2]