The Municipality of Šempeter-Vrtojba (pronounced [ʃɛmˈpeːtəɾ ʋəɾˈtoːjba] or [ʃəmˈpeːtəɾ ʋəɾˈtoːjba]; Slovene: Občina Šempeter - Vrtojba; Italian: Comune di San Pietro-Vertoiba) is a municipality in Slovenia.

The municipality comprises the town and municipal seat of Šempeter pri Gorici and the adjacent village of Vrtojba.

Nowadays, the Municipality of Šempeter-Vrtojba forms a single continuous urban area with the neighbouring towns of Nova Gorica and Gorizia.

[2] Since May 2011, these three municipalities have been joined in a common trans-border metropolitan zone, administered by a joint administration board.

This article about the Municipality of Šempeter-Vrtojba in Slovenia is a stub.