Gmajna (pronounced [ˈɡmaːi̯na], German: Gmaina[2]) is a former village in central Slovenia in the Municipality of Ivančna Gorica.

[1][3] It is located at a bridge across the river leading to the former village of Videm, with road connections north to Trebnja Gorica and east to Gabrovčec.

[3] The name Gmajna means 'commons', referring to land that was jointly owned and used by the village community.

The Slovenian common noun gmajna is a borrowing from Middle High German gemeine, with the same meaning, and is found in other Slovene toponyms such as Gmajna near Slovenj Gradec as well as in the diminutive form Gmajnica.

[4] During the Second World War, the Partisans destroyed the bridge across the Krka connecting Gmajna with Videm.