Matienzo is the name of a village and a karst depression some 25 km southeast of Santander in Ruesga municipality, Cantabria, northern Spain. The limestone around Matienzo is riddled with caves (up to 57 km in length) which have been extensively explored over the last 50 years by Spanish and British cavers.
Matienzo is a village and a karst depression in Spain.
Matienzo may also refer to:
- Matienzo Base, a base and scientific research station in Argentine Antarctica
- Benjamín Matienzo, an Argentine aviator
- Teniente General Benjamín Matienzo International Airport, in Tucumán Province, Argentina