| Capital Department | |
| Native Name Lang: | es |
| Settlement Type: | Department |
| Mapsize: | 180px |
| Pushpin Map Caption: | Location of Capital Department within Santiago del Estero Province |
| Coordinates: | -27.8°N -64.2667°W |
| Coor Pinpoint: | Santiago del Estero |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Subdivision Name1: | Santiago del Estero |
| Seat Type: | Head town |
| Seat: | Santiago del Estero |
| Unit Pref: | Metric |
| Area Total Km2: | 2116 |
| Population Total: | 267125 |
| Population As Of: | 2010 |
| Population Density Km2: | auto |
| Timezone1: | ART |
| Utc Offset1: | -3 |
Capital Department (Spanish; Castilian: Departamento Capital) is a department of Argentina in Santiago del Estero Province. The capital city of the department is situated in Santiago del Estero.