| Tolhuin Department | |
| Native Name Lang: | es |
| Settlement Type: | Department |
| Mapsize: | 180px |
| Pushpin Map Caption: | Location of Tolhuin Department within Tierra del Fuego Province |
| Coordinates: | -53.7864°N -67.6967°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Type1: | Province |
| Established Date: | October 27, 2017 |
| Seat Type: | Head town |
| Seat: | Tolhuin |
| Unit Pref: | Metric |
| Area Total Km2: | 11243 |
| Timezone1: | ART |
| Utc Offset1: | -3 |
Tolhuin Department (Spanish; Castilian: Departamento Tolhuin) is a department of Argentina in Tierra del Fuego Province, Argentina. It was established on October 27, 2017, by law of the provincial legislature.[1] [2] The capital city of the department is situated in Tolhuin. It was previously part of the Río Grande Department.[3]