Sveta Trojica v Slovenskih Goricah (Sveta Trojica v Slovenskih goricah) is a settlement in northeastern Slovenia. It is the seat of the Municipality of Sveta Trojica v Slovenskih Goricah. It lies in the Slovene Hills (Slovenske gorice). The area is part of the traditional region of Lower Styria. It is now included in the Drava Statistical Region.
The name of the settlement was changed from Sveta Trojica v Slovenskih Goricah (literally, 'Holy Trinity in the Slovene Hills') to Gradišče (literally, 'fortified hillfort') in 1952. The name was changed on the basis of the 1948 Law on Names of Settlements and Designations of Squares, Streets, and Buildings as part of efforts by Slovenia's postwar communist government to remove religious elements from toponyms. The name was then changed from Gradišče to Gradišče v Slovenskih Goricah in 1953. The name Sveta Trojica v Slovenskih Goricah was restored in 1992.
