Zatrnik (pronounced [ˈzaːtəɾnik][1] or [zatəɾˈniːk],[2] in older sources Zaternik[3]) is a settlement in the Municipality of Gorje in the Upper Carniola region of Slovenia.

Zatrnik was recorded in historical sources as Za Ternikom in 1763–1787.

The name is a fused prepositional phrase that has lost inflection, derived from za trnikom 'behind the thorny thicket'.

[4] Zatrnik was deemed annexed by Krnica in 1952, ending any existence it had as a separate settlement.

This article about the Municipality of Gorje in Slovenia is a stub.