Šmartno (pronounced [ˈʃmaːɾtnɔ]; Italian: San Martino del Collio or San Martino di Quisca) is a village in the Municipality of Brda in the Littoral region of Slovenia.

The entire village has been declared a cultural heritage monument.

Its history dates back to Roman times, and the village was first mentioned as Sanctus Martinus in 1317.

[3] The parish church, from which the settlement also gets its name, is dedicated to Saint Martin and belongs to the Koper Diocese.

[4] This article about the Municipality of Brda in Slovenia is a stub.