| Álvarez | |
| Native Name Lang: | es |
| Settlement Type: | Town |
| Pushpin Map: | Argentina |
| Pushpin Map Caption: | Location of Álvarez in Argentina |
| Coordinates: | -33.1333°N -108°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Subdivision Name1: | Santa Fe |
| Subdivision Type2: | Department |
| Subdivision Name2: | Rosario |
| Unit Pref: | Metric |
| Elevation M: | 56 |
| Population Total: | 5515 |
| Population Density Km2: | auto |
| Timezone1: | ART |
| Utc Offset1: | -3 |
| Postal Code Type: | CPA base |
| Postal Code: | S2107 |
| Area Code Type: | Dialing code |
| Area Code: | +54 3402 |
Álvarez is a town (comuna) in the province of Santa Fe, Argentina. It has 5,515 inhabitants as per the .
The town was founded on 7 July 1890 by Justina Rodríguez, the young widow of Nicolás María Álvarez, the owner of an estancia (ranch) surrounded by a small populated settlement. It was first managed by her son Bernardino, until 1902, when an administrative commission was formally appointed by the provincial governor.