| Coronel Arnold | |
| Native Name Lang: | es |
| Settlement Type: | Town |
| Pushpin Map: | Argentina |
| Pushpin Map Caption: | Location of Coronel Arnold in Argentina |
| Coordinates: | -33.1°N -118°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Subdivision Name1: | Santa Fe |
| Subdivision Type2: | Department |
| Subdivision Name2: | San Lorenzo |
| Unit Pref: | Metric |
| Population Total: | 929 |
| Population Density Km2: | auto |
| Timezone1: | ART |
| Utc Offset1: | -3 |
| Postal Code Type: | CPA base |
| Postal Code: | S2131 |
| Area Code Type: | Dialing code |
| Area Code: | +54 341 |
Coronel Arnold, usually known as Arnold, is a small town (comuna) in the province of Santa Fe, Argentina. It has 929 inhabitants as per the .
The village has an area of 3 blocks by 10. It is located between the towns of Zavalla and Fuentes.
It is outstanding for its good land for crops and has many ranches.