Opatje Selo (pronounced [ɔˈpaːtjɛ ˈsɛːlɔ]; Slovene: Opatje selo, Italian: Opacchiasella[2]) is a village in the Municipality of Miren-Kostanjevica in the Littoral region of Slovenia, right on the border with Italy.

[3] It is located on the Karst Plateau, along an old road leading from Komen to Gorizia.

[4] Opatje Selo was attested in written sources in 1180 as Sella, 1252 as Sedla, 1275 as Otaeasela, and 1494 as Appatzell.

[4] The parish church in the settlement is dedicated to Saint Andrew and belongs to the Diocese of Koper.

[7] Notable people that were born or lived in Opatje Selo include: